WO2006051663A1 - 分解反応装置、再生樹脂組成物原料製造システム、再生樹脂組成物原料製造方法、再生樹脂組成物原料、および成形体 - Google Patents
分解反応装置、再生樹脂組成物原料製造システム、再生樹脂組成物原料製造方法、再生樹脂組成物原料、および成形体 Download PDFInfo
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- WO2006051663A1 WO2006051663A1 PCT/JP2005/018643 JP2005018643W WO2006051663A1 WO 2006051663 A1 WO2006051663 A1 WO 2006051663A1 JP 2005018643 W JP2005018643 W JP 2005018643W WO 2006051663 A1 WO2006051663 A1 WO 2006051663A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
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- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
- B01J19/243—Tubular reactors spirally, concentrically or zigzag wound
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- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
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- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/008—Processes carried out under supercritical conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00027—Process aspects
- B01J2219/00033—Continuous processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00132—Controlling the temperature using electric heating or cooling elements
- B01J2219/00135—Electric resistance heaters
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
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- B01J2219/00162—Controlling or regulating processes controlling the pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00164—Controlling or regulating processes controlling the flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
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- B01J2219/00166—Controlling or regulating processes controlling the flow controlling the residence time inside the reactor vessel
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00168—Controlling or regulating processes controlling the viscosity
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00184—Controlling or regulating processes controlling the weight of reactants in the reactor vessel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00245—Avoiding undesirable reactions or side-effects
- B01J2219/00252—Formation of deposits other than coke
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/185—Details relating to the spatial orientation of the reactor vertical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/19—Details relating to the geometry of the reactor
- B01J2219/194—Details relating to the geometry of the reactor round
- B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
- B01J2219/1944—Details relating to the geometry of the reactor round circular or disk-shaped spiral
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- Decomposition reaction apparatus recycled resin composition raw material manufacturing system, recycled resin composition raw material manufacturing method, recycled resin composition raw material, and molded article
- the present invention relates to a decomposition reaction apparatus, a reclaimed resin composition raw material production system, a reclaimed resin composition raw material production method, a regenerated resin composition raw material, and a molded article.
- thermosetting resins that are difficult to solubilize with supercritical water
- Methods have been studied (for example, see Patent Document 1: Japanese Patent Laid-Open No. 2001-151933;).
- a cured product of thermosetting resin such as phenol resin can be solubilized and the oligomer component can be recovered, and the oligomer component can be reused as a raw material for thermosetting resin. Yes.
- Patent Document 1 is a production method using a batch reactor, and particularly under high-temperature and high-pressure reaction conditions, there are problems such as slow heat transfer to the inside and uniform reaction. Therefore, it is not suitable for mass production equipment. Also in the recycling method, Although the above-mentioned oligomer component and mononuclear phenol are reused, there is no mention of the method of recycling the solid residue contained in the reactant, and in this respect as well, It cannot be said that a mode necessary for mass production and commercialization is disclosed.
- thermosetting resin in a solution of the above-mentioned supercritical or subcritical phenolic compound or water Z phenol compound, decomposition of thermosetting resin
- a method for increasing the molecular weight of an oligomer component that can be recovered by adding a formaldehyde compound during a soluble solution process and performing a polymerization reaction for example, Patent Document 2: JP-A-2004 2004 — See publication 161983.
- This method has an advantage that the higher molecular weight oligomer component can be recovered than the solubilization treatment alone, and the use for reusing the oligomer component is expanded.
- Patent Document 2 the method specifically disclosed in Patent Document 2 is still a batch reactor, and has been completed as a method suitable for mass production facilities.
- Patent Document 3 Japanese Patent Laid-Open No. 10-147786;
- this technique is a disclosure of a technique related to liquids of natural products that is relatively easy to decompose and provides suggestions as a general methodology for mass production, the skill of those skilled in the art. Even if one intends to decompose and Z or dissolve a thermosetting resin-containing plastic, there is no room for recalling specific embodiments.
- An object of the present invention is to provide a decomposition reaction apparatus capable of continuously producing a raw material of a reclaimed resin composition using an industrial waste or general waste containing a thermosetting resin as a resin composition, and Providing a raw material production system for a reclaimed resin composition provided with the same, a method for producing a raw material for a reclaimed resin composition using the system for producing a raw material for reclaimed resin composition, Another object of the present invention is to provide a reclaimed resin composition raw material produced using the above, and a molded product formed from the regenerated resin composition raw material as a resin composition.
- thermosetting resin A decomposition reaction apparatus for decomposing thermosetting resin
- thermosetting resin containing a thermosetting resin, and a monomer component of the thermosetting resin or this
- An introduction part for introducing a solvent containing a derivative of a monomer component, and heating and pressurizing the resin composition and the solvent to bring the solvent into a supercritical state or a subcritical state.
- LZD 10 to 5000 above (2 ).
- the treatment temperature in the decomposition reaction section is 200 to 500 ° C.
- At least a part of the first processed recovered product and Z or the second processed recovered product processed from the first processed recovered product discharged from the discharge unit of the decomposition reaction apparatus is used as a raw material for the reclaimed resin composition, Regenerated rosin composition raw material production system.
- a first separation unit that separates and removes a solid residue from the first treated recovered material, the recycled resin having a high molecular weight from the second treated recovered material
- a second separation unit that separates and extracts a low-boiling-point component containing a solvent, and the polymerization reaction apparatus is installed between the first separation unit and the second separation unit
- the reclaimed resin composition production system as described in (14) above.
- the polymerization reaction apparatus includes a polymerization reaction unit that performs a polymerization reaction between the regenerated resin and a polyfunctional compound to obtain the second treatment collection product, and the regeneration to the polymerization reaction unit.
- the introduction of the resin and the polyfunctional compound, the polymerization reaction in the polymerization reaction unit, and the discharge of the second treated recovered product from the polymerization reaction unit are all performed continuously (14 ) Or (15).
- the second separation unit is connected to a return path for returning the low boiling point component extracted by the second separation unit to the introduction unit side of the decomposition reaction device.
- the decomposition reaction apparatus and the first separation unit are connected to each other via a cooling device that cools the first treatment collection product discharged from the decomposition reaction apparatus ( 21) Nana !, (23)
- the reclaimed resin composition raw material production system according to any one of the above.
- thermosetting resin is heated and pressurized to bring the solvent into a supercritical state or a subcritical state.
- the first treated recovered material is continuously discharged from the discharge part of the decomposition reaction apparatus, and at least a part of the first treated recovered material and Z or the second treated recovered material processed therefrom is regenerated.
- a method for producing a regenerated fat composition raw material characterized by being used as a raw material for a fat composition.
- FIG. 1 is a diagram showing a schematic configuration of a reclaimed resin composition raw material production system according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing the main body of the decomposition reaction apparatus provided in the reclaimed resin composition raw material production system shown in FIG.
- FIG. 3 is a cross-sectional view showing a main body of a decomposition reaction apparatus provided in a reclaimed resin composition raw material production system according to a second embodiment of the present invention.
- FIG. 4 is a diagram showing a schematic configuration of a reclaimed resin composition raw material manufacturing system according to a third embodiment of the present invention.
- FIG. 5 is a diagram showing a schematic configuration of a reclaimed resin composition raw material manufacturing system according to a fourth embodiment of the present invention.
- FIG. 1 is a diagram showing a schematic configuration of a reclaimed resin composition raw material production system according to the first embodiment of the present invention
- FIG. 2 is a diagram of the regenerated resin composition raw material production system shown in FIG. It is sectional drawing which shows the main body of the provided decomposition reaction apparatus.
- the reclaimed resin composition raw material production system 1 shown in Fig. 1 includes a resin composition containing a thermosetting resin (hereinafter, simply referred to as “resin composition”), and the heat in the resin composition.
- a resin composition containing a thermosetting resin hereinafter, simply referred to as “resin composition”
- a mixture of a monomer component constituting the curable resin or a solvent containing a derivative of this monomer component hereinafter simply referred to as “solvent”
- solvent a regenerated resin having a reduced molecular weight of the thermosetting resin in the resin composition.
- regenerated resin composition raw material a raw material for the reclaimed resin composition raw material”.
- the main feature of the present invention is that the thermosetting resin is decomposed by continuous operation.
- the decomposition treatment includes treatment by chemical decomposition and treatment by Z or physical solubility.
- Continuous operation is an operation method that contrasts with batch operation.
- the continuous operation is an operation method in which the resin composition and the substances necessary for the treatment are continuously introduced into the apparatus at a constant rate (flow rate) and processed, and the treated recovery is continuously discharged. is there.
- the continuous operation is an operation method in which the resin composition and the substances necessary for the treatment are continuously introduced into the apparatus at a constant rate (flow rate) and processed, and the treated recovery is continuously discharged. is there.
- the continuous operation is an operation method in which the resin composition and the substances necessary for the treatment are continuously introduced into the apparatus at a constant rate (flow rate) and processed, and the treated recovery is continuously discharged. is there.
- the continuous operation is an operation method in which the resin composition and the substances necessary for the treatment are continuously introduced into the apparatus at a constant rate (flow rate) and processed, and the
- thermosetting resin in the resin composition is continuously and efficiently decomposed, and the regenerated resin, solid residue, and low-boiling components contained in the processed recovered product Can be collected and reused as a raw material for plastics.
- such a regenerated rosin composition raw material production system 1 is configured to heat and pressurize a mixture of a rosin composition and a solvent (hereinafter simply referred to as "mixture"). It has a decomposition reaction apparatus 2 that decomposes the thermosetting resin in the resin composition by continuous operation (ie, makes it soluble in a solvent). On the discharge side of the decomposition reaction apparatus 2, a cooling apparatus 4, a first separation section 51 that is a solid-liquid separation apparatus, and a second separation section 52 that is a gas-liquid separation apparatus are connected in this order. Yes.
- the decomposition reaction device 2, the cooling device 4, the first separation unit 51, and the second separation unit 52 will be sequentially described in detail.
- the decomposition reaction apparatus 2 includes a decomposition reaction apparatus main body 21 for decomposing the thermosetting resin and a supply unit 3 for supplying a mixture to the decomposition reaction apparatus main body 21.
- the supply unit 3 includes a mixing device 31 that mixes the resin composition and the solvent, and pressurization that pressurizes the mixture from the mixing device 31 to the decomposition reaction device main body 21 (the introduction unit 222 of the reactor 22 described later). With device 32!
- the mixing device 31 is connected to a hopper 35 for storing the resin composition via an on-off valve 34.
- the form of the resin composition contained in the hopper 35 is not particularly limited, and may be, for example, solid, liquid, or semisolid.
- the mixing device 31 is not particularly limited as long as it can mix the resin composition and the solvent.
- the mixing device 31 has a mechanism of mixing by a screw or rotating a mixing container.
- a mixing apparatus etc. are mentioned. More specifically, examples of the mixing device 31 include a stirring tank having an anchor-type or ribbon-type stirring blade, a screw extruder, and a kneader.
- An introduction pipe 37 having an on-off valve 36 is connected to such a mixing apparatus 31, and the solvent is introduced into the mixing apparatus 31 through the introduction pipe 37.
- This introduction pipe 37 introduces the solvent into the mixing apparatus 31 from the outside of the recycled resin composition production system 1 and the introduction pipe 37a for returning the solvent from the second separation section 52 described later into the mixing apparatus 31.
- an introduction pipe 37b is connected to the mixing apparatus 31 and the introduction pipe 37b.
- the on-off valve 36 has an on-off valve 36a provided on the introduction pipe 37a and an on-off valve 36b provided on the introduction pipe 37b.
- Such a mixing device 31 is connected to the pressurizing device 32 via the on-off valve 33.
- the pressurizing device 32 supplies the mixture from the mixing device 31 to the decomposition reaction device main body 21 while pressurizing the mixture.
- the pressurizing device 32 is appropriately selected according to the condition such as the properties and viscosity of the mixture, and can be supplied while pressurizing the mixture to the decomposition reaction device main body 21.
- a pressure-feeding device such as a syringe pump, a plunger pump, or a diaphragm pump can be used, and a relatively large lump and liquid product can be used.
- a paste-like mixture obtained by mixing with a single-screw or twin-screw extruder it is possible to use a device that feeds by mechanical force.
- the decomposition reaction apparatus main body 21 has a tubular reactor 22 composed of a spirally extending tubular body, and a heater 23 for heating the reactor 22.
- the tubular reactor 22 is for performing a decomposition treatment while circulating the mixture through the pipeline.
- Ma The tubular reactor 22 is connected to the pressurizer 32 described above at one end (upper end in FIG. 2), and the first separation unit 51 is connected to the other end (lower end in FIG. 2) via the cooling device 4. It is connected.
- the tubular reactor 22 heats and pressurizes the mixture inside thereof to bring the solvent into a supercritical state or a subcritical state, thereby reducing the molecular weight of the thermosetting resin.
- the decomposition reaction part 221 for obtaining the first treated recovery product containing selenium is constituted, the one end thereof constitutes the introduction part 222 for introducing the mixture, and the other end is the discharge for discharging the first treated recovery substance.
- Part 2 23 is constructed.
- the decomposition reaction apparatus 2 is configured to introduce a thermosetting resin by introducing the mixture 222 into the mixture and heating and pressurizing the mixture to bring the solvent into a supercritical state or a subcritical state.
- a decomposition reaction unit 221 that obtains a first treated recovered material containing regenerated rosin having a reduced molecular weight, and a discharge unit 223 that discharges the first treated collected material are provided.
- tubular reactor 22 Since such a tubular reactor 22 has a spiral shape extending in the vertical direction, the amount of movement of the mixture in the horizontal direction can be increased. As a result, it is possible to prevent the solid content in the mixture in the tubular reactor 22 from sinking in the direction of gravity (downward) and blocking the inlet and outlet of the pipe line of the tubular reactor 22. .
- thermosetting resin in the resin composition can be continuously and efficiently decomposed.
- Such a reaction apparatus 21 introduces a mixture from the supply section 3 to the introduction section 222, pressurizes the mixture by the pressurization apparatus 32 in the decomposition reaction section 221, and heats the mixture by the heater 21a.
- the solvent in the mixture is set to a supercritical state or a subcritical state, and the thermosetting resin in the mixture is reduced to a low molecular weight to obtain a first treated recovered material, which is discharged from the discharge unit 223 to the cooling device 4 To do.
- LZD is 10 to 5,000. More preferred is a force of 20-2000.
- LZD is less than the lower limit, the linear velocity (distribution velocity) of the resin composition and the solvent flowing in the tubular reactor 22 is remarkably reduced.
- the degree of decomposition reaction may be non-uniform, and if the resin composition contains a solid content, precipitation may occur.
- a static mixer is provided inside the tubular reactor 22.
- mixing of the resin composition and the solvent can be promoted, or separation of the resin composition and the solvent in the mixture can be prevented.
- the cooling device 4 is for cooling the high temperature first processing recovery product and enabling solid-liquid separation in the first separation unit 51 described later. Note that the cooling device 4 may be omitted if solid-liquid separation is possible in the first separation unit 51 described later.
- the first separation unit 51 is configured to separate the first treated recovered product into regenerated resin, a low-boiling component, and a solid residue. Then, the first separation unit 51 can recover the solid residue as a recycled resin composition raw material, and supplies the recycled resin and the low boiling point component to the second separation unit 52. It becomes like this.
- the first separation unit 51 is not particularly limited as long as it has a function as described above.
- a device using a method such as cyclone, gravity sedimentation, filtration, and centrifugation is used. Can do. As a result, it is possible to remove (remove) the first process-recovered product solid residue.
- the first separation unit 51 as described above is provided with a second separation unit that is a gas-liquid separation device via an on-off valve 53. Connected to part 52.
- the second separation unit 52 receives an object of solid-liquid separation (mainly composed of a recycled resin and a low-boiling component) from the first separating unit 51, and separates it into a recycled resin and a low-boiling component. It is supposed to do.
- the second separation unit 52 can recover the regenerated resin as a raw material of the regenerated resin composition.
- the second separation unit 52 is connected to a return path 54 for returning the low boiling point component to the mixing device 31. Except for the regenerated butter and low boiling point components, the waste liquid is discharged. This waste liquid can be used as recycled IJ as a raw material for the reclaimed resin composition.
- the second separation unit 52 is not particularly limited as long as it has the functions described above.
- a method such as simple distillation, vacuum distillation, flash distillation, molecular distillation, steam distillation, extraction, or the like. Can be used. As a result, the low boiling point component and the recycled resin can be recovered.
- first separation unit 51 and the second separation unit 52 are appropriately selected depending on how to recycle the first treated recovered material such as regenerated resin, solid residue, and low-boiling components.
- first treated recovered material such as regenerated resin, solid residue, and low-boiling components.
- one of the first separation unit 51 and the second separation unit 52 may not be provided.
- the solid-liquid separation target may be diluted with a solvent.
- the filtrate is further distilled by simple distillation or vacuum distillation to have a boiling point higher than that of water in the filtrate or a solvent such as acetone.
- the lower fraction may be removed, and then the solvent may be distilled off by vacuum distillation or the like.
- multistage separation using a distillation column may be performed.
- the method as described above may be used, but the mixture of regenerated resin and solid residue is regenerated.
- the separation of the solid residue is omitted and only the low-boiling component is separated, and the mixture of the recycled resin and the solid residue and the low-boiling component are separated separately. 'Recover it.
- the first separation unit 51 and the second separation unit 52 are used. If a mixture of reclaimed resin, solid residue, and low-boiling components is reused as a raw material for the regenerated resin composition.
- the method for producing a reclaimed resin composition raw material in the present embodiment is to obtain a reclaimed resin composition raw material using the above-described reclaimed resin composition raw material production system 1.
- Such a method for producing a reclaimed resin composition raw material includes: [A] a supply step of continuously introducing the mixture from the supply unit 3 to the introduction unit 222; and [B] the mixture in the decomposition reaction unit 221.
- Decomposition process step of obtaining a first process recovery product containing regenerated resin with a low molecular weight of thermosetting resin by heating and pressurizing the solvent to bring the solvent into a supercritical or subcritical state.
- [C] discharge part 223 force continuously discharging the first treated recovered material, and using at least a part of the recovered resin composition as a raw material for the reclaimed resin composition.
- the mixture is continuously introduced from the supply unit 3 into the introduction unit 222 of the main body 21 of the decomposition reaction apparatus.
- a resin composition containing a thermosetting resin and a monomer component constituting the thermosetting resin or a component similar to this monomer component are supplied from the hopper 35 to the mixing device 31 via the open / close valve 34. Further, the solvent is supplied from the introduction pipe 37 to the mixing device through the open / close valve 36.
- thermosetting resin is not particularly limited as long as it contains a thermosetting resin, and industrial waste, general waste, and the like can be used.
- thermosetting resin in the resin composition is not particularly limited.
- the resin include a resin, a silicone resin, a polyurethane resin, a maleimide resin, and a cyanate.
- one can be used alone or two or more can be used in combination.
- novolak It is preferable to use epoxy resin such as bisphenol A type epoxy, orthocresol novolac epoxy, biphenyl type epoxy, aralkyl type epoxy and the like. These can be used alone or in combination of two or more.
- the resin composition may be composed of a thermosetting resin alone or may contain a substance other than the thermosetting resin.
- the thermosetting resin when the resin composition is composed of a thermosetting resin alone, the thermosetting resin may be in a cured state, a semi-cured state, or an uncured state. Further, it may be a combination of two or more of these states, or may be a liquid such as a varnish containing a solvent.
- the resin composition contains a substance other than the thermosetting resin, it should not be reduced in molecular weight by decomposition treatment as a substance other than the thermosetting resin.
- examples of such substances include organic materials such as thermoplastic resin, inorganic materials such as glass, metal, and metal compounds.
- thermosetting resin a molding material or a molded product containing a filler such as silica, glass fiber, wood powder, etc.
- an inorganic system such as glass cloth, paper, cloth
- Plastic products and the like can be used.
- a solid lump is previously pulverized into a powder and then mixed by a hopper 35. It is preferable to supply to 31. Even if a solid lump is used as the rosin composition, if the lump can be simultaneously pulverized and cut by shearing force or the like by the pressurization with the pump 32 or the treatment with the reactor 21, the solid lump can be used. It is not necessary to pulverize the mass in advance and supply it to the hopper 35 as a powder.
- the maximum particle size is 1000 ⁇ m or less. As a result, the processing efficiency of the decomposition process can be made relatively easy. On the other hand, the maximum particle size of the resin composition composed of powder is 1000 If it is larger than m, the amount of undecomposed matter may increase in the decomposition process depending on the processing conditions.
- the solvent includes a monomer component constituting the thermosetting resin as described above or a derivative of this monomer component (hereinafter simply referred to as "constituent monomer components"!).
- a monomer component constituting the thermosetting resin as described above or a derivative of this monomer component hereinafter simply referred to as "constituent monomer components”!.
- the thermosetting resin can be decomposed (that is, reduced in molecular weight) when it reaches the supercritical state or the subcritical state, for example, phenols. And melamine compounds and the like can be used.
- the phenol compound is not particularly limited as long as it is a compound in which at least one hydrogen bonded to the carbon of the aromatic ring is substituted with a hydroxyl group.
- phenol, cresol, Mononuclear monovalent phenolic compounds such as xylenol and alkyl-substituted phenols
- mononuclear polyvalent phenolic compounds such as resorcin and catechol
- polynuclear monovalents such as aryl-substituted phenol, naphthol, hydroxyanthracene, and hydroxyphenanthrene Phenolic compounds
- polynuclear polyhydric phenol compounds such as bisphenol A, bisphenol F, and dihydroxybiphenyl, and mononuclear monovalent phenol compounds, mononuclear polyvalent phenol compounds, polynuclear monovalent phenol compounds,
- melamine compound for example, melamine, and compounds such as acetoguanamine and benzoguanamine (compounds in which the amino group of melamine is substituted with another functional group) are preferably used.
- a phenol compound as a constituent monomer component used as a solvent.
- a phenol compound a mononuclear monovalent phenol compound is used.
- phenol it is preferable to use phenol.
- the efficiency of the decomposition process is excellent and the cost can be reduced.
- the solvent may be composed of only the constituent monomer components as described above, or may contain other components.
- other components contained in the solvent include water, monoalcohols such as methanol and ethanol, and glycols such as ethylene glycol and propylene glycol.
- monoalcohols such as methanol and ethanol
- glycols such as ethylene glycol and propylene glycol.
- ketones, ethers, esters, organic acids, acid anhydrides and the like can be mentioned, and one of these can be used alone or in combination of two or more.
- the mixing ratio of the other components to the constituent monomer components is preferably 100 to 100 parts by weight of the constituent monomer components in which the ratio of 1 to 500 parts by weight of the other components is preferable to 100 parts by weight of the constituent monomer components. More preferably, the proportion is 5 to 50 parts by weight of the other components.
- the processing speed of the decomposition process can be made relatively easy.
- the amount of other components added is larger than the upper limit, the decomposition speed may be reduced.
- the processing speed of the decomposition process may decrease.
- the ratio of the mixture of the resin composition and the solvent in the mixture is preferably 50 to L000 parts by weight of the solvent with respect to 100 parts by weight of the resin composition.
- the solvent is more preferably 100 to 400 parts by weight with respect to 100 parts by weight.
- the mixture may contain an acid or a basic catalyst.
- the catalyst is preferably a basic catalyst. This reduces problems such as electrical properties and corrosion during recycling.
- a basic catalyst is not particularly limited as long as it acts as a base for a solvent or a thermosetting resin in the decomposition treatment, and various inorganic basic catalysts and various organic bases. Can be used.
- inorganic basic catalysts such as alkali metal and alkaline earth metal hydroxides are suitable, and in particular, V, which has a small influence on the electrical properties of the resin.
- V which has a small influence on the electrical properties of the resin.
- calcium hydroxide and magnesium hydroxide are more preferred!
- the addition amount of such a catalyst is based on 100 parts by weight of a resin composition containing a thermosetting resin. Preferably 0.05 to: LOO parts by weight, more preferably 0.1 to 10 parts by weight. This effectively promotes the decomposition process.
- the amount of the catalyst added is less than the lower limit, the characteristics of the recovered recycled resin may deteriorate. For example, when the thermosetting resin is phenol resin, the reduction of hydroxyl groups due to side reactions occurs.
- the amount of the catalyst added exceeds the upper limit, the electrical properties of the reclaimed resin composition using the recovered reclaimed resin may be deteriorated.
- the viscosity of the mixture obtained by the mixing device 31 is preferably 0.001 to 1000 Pa's at 23 ⁇ 0.2 ° C.
- the mixture having such a viscosity is preferably in a slurry state.
- the processing efficiency of the decomposition process can be made relatively easy.
- the viscosity of the mixture is less than 0.0OOlPa's, the molecular weight of the recovered reclaimed resin tends to be small, and when it exceeds lOOOPa's, in the tubular reactor 22, The fluidity and curability of the recovered recycled resin may be impaired.
- the viscosity of the above-mentioned mixture is obtained at a temperature in the range of 23 ⁇ 0.2 ° C when the mixture is in a slurry state. It is preferable to use a conical plate type rotational viscometer for classification in “Liquid viscosity—measuring method”.
- the measurement method is JIS-K7117-2 “Plastic—Liquid, emulsion, or dispersion of oil—Method of measuring viscosity at a constant shear rate with a rotational viscometer”. It is preferable to perform constant shear rate measurement with constant control.
- the mixture of the resin composition and the solvent is supplied to the decomposition reaction unit 221 and pressurized by the pressurization device 32 so that the solvent in the mixture is in a supercritical state or a subcritical state. And heated by the heater 23. Thereby, the thermosetting resin in the mixture Is reduced in molecular weight, and the first treated recovered material containing regenerated rosin is obtained.
- the treatment temperature in the decomposition reaction part 221 is appropriately selected according to the type of the resin composition, but it is preferably 200 to 500 ° C and 200 to 450 ° C. It is better to have it. Thereby, the decomposition process can be stably performed in a relatively short time. On the other hand, if the treatment temperature is less than the lower limit, the decomposition process may take a long time or the decomposition process may be difficult. On the other hand, when the upper limit is exceeded, an irregular reaction mainly due to thermal radicals tends to occur in the decomposition reaction part 221.
- the pressure in the decomposition reaction part 221 (that is, the pressure applied to the mixture of the resin composition and the solvent) is preferably controlled to a pressure suitable for the decomposition treatment, if necessary. More specifically, the pressure in the decomposition reaction part 221 is preferably 1 to 60 MPa, more preferably 2 to 45 MPa. As a result, the decomposition process can be performed efficiently while suppressing the cost. On the other hand, if the pressure is less than the lower limit, decomposition may not proceed due to vaporization of the solvent. On the other hand, if the pressure exceeds the upper limit, a large amount of cost is required for the pressure resistance design.
- the space time in the decomposition reaction unit 221 is appropriately selected according to other processing conditions and the like, but is preferably 1 to 60 minutes. Thereby, it is possible to improve the yield of a recycled resin having a molecular weight suitable for recycling. On the other hand, if the space time is less than the lower limit value, the decomposition process may not be performed sufficiently. On the other hand, if the space time exceeds the upper limit, there is a possibility that the molecular weight of the recycled resin will be excessively lowered or that production efficiency may be problematic.
- space time means the volume of the tubular reactor as V [m 3 ] and the flow rate of the mixture of the resin composition and the solvent flowing in the tubular reactor.
- the first process collection material generated by the decomposition process in the decomposition reaction section 21a is discharged from the discharge section 223 to the cooling device 4.
- the first treated recovered product cooled by the cooling device 4 is recycled to the regenerated resin and the first separation unit 51. It is separated (extracted) into a low boiling point component and a solid residue.
- the first recovered product from which the solid residue is removed by the solid-liquid separator 51, that is, the regenerated resin and low-boiling components are supplied to the second separator 52, and the solid residue is the regenerated resin composition. Recovered as raw material.
- the first treated recovered material from which the solid residue has been removed by the first separation unit 51 is separated by the second separation unit 52 into recycled resin and low-boiling components.
- the reclaimed resin is recovered as a raw material of the regenerated resin composition, and the low boiling point component is returned to the supply unit 3 through the return path 35 and reused as a solvent.
- the reclaimed resin obtained as a raw material of the regenerated resin composition is mainly composed of a thermosetting resin having a low molecular weight.
- such a reclaimed resin preferably contains 50% or more by weight of regenerated resin having a weight average molecular weight of 200 to 10,000. This makes it possible to obtain a reclaimed resin suitable as a raw material for the reclaimed resin composition.
- the above-mentioned recycled resin having a weight average molecular weight of 200 to 10000 includes, in addition to those obtained by reducing the molecular weight of thermosetting resin, organic fillers and substrates contained in the resin composition, these The decomposition product etc. may be included.
- the reclaimed fat obtained as a raw material for the reclaimed fat composition may include reclaimed fat having a weight average molecular weight of 10,000 or more in addition to the reclaimed fat having a weight average molecular weight of 200 to 10,000.
- thermosetting resin when a normal thermosetting resin is decomposed, the above-described reclaimed resin having a weight average molecular weight of 200 to 10,000 is about 2 to about the LOO nucleobody of the monomer constituting the thermosetting resin. It is configured.
- thermosetting resin of the resin composition when the thermosetting resin of the resin composition is phenol resin, examples include phenolic resin or oligomers in which the nuclei of the phenol skeleton are linked by a methylene bond.
- thermosetting resin in the resin composition is melamine resin, a melamine resin or oligomer in which the melamine skeleton nuclei are bonded by a methylene bond can be cited.
- thermosetting resin in the product is urea resin
- the urea skeleton include urea urea or oligomers in which the nuclei are bonded by a methylene bond, and the resin composition contains phenolic resin, melamine resin, and urea resin as thermosetting resins, respectively.
- each of these resins or oligomers a compound having a structure in which each of a phenol skeleton, a melamine skeleton, and a urea skeleton is copolymerized with a methylene bond may be used.
- These regenerated fats are examples, and the reclaimed fats obtained as a raw material for the reclaimed fat composition are not limited in any way.
- Such a reclaimed resin has a molecular weight similar to the molecular weight of a prepolymer used in the production of a molded body containing a thermosetting resin.
- the reclaimed resin can be reused as a chemical raw material (prepolymer) such as a molded body using a thermosetting resin as a raw material.
- the solid residue obtained as a raw material for the reclaimed resin composition is usually an undecomposed component of the resin composition, a polymerized carbonized product of the resin composition, a filler contained in the resin composition, a basic property.
- the main component is a catalyst.
- Such a solid residue may be used as a filler of a resin composite material such as a thermosetting resin, as a base material, or as a base material of a resin composition such as roadbed material, glass, and cement. You can use it again for IJ.
- a resin composite material such as a thermosetting resin
- a base material such as a base material
- a resin composition such as roadbed material, glass, and cement. You can use it again for IJ.
- the low boiling point component obtained as a raw material for the reclaimed resin composition is a solvent, a low molecular weight compound produced during decomposition of the resin composition, or a dilute compound that is optionally used during solid-liquid separation. Solvent and the like.
- thermosetting resins are generally used as a raw material, for example, as a synthetic resin raw material. Can be reused for certain applications. In this case, if necessary, it is possible to take out only the necessary fraction of the low-boiling component and use it, or newly add a solvent such as a phenol compound or water.
- Sarasako can also recycle all of the first processed recovered material obtained by the decomposition process in a lump.
- the raw material of the reclaimed resin composition containing the solid residue As described above, it is possible to reuse the thermosetting resin for applications in which it is used as a raw material.
- Fig. 3 is a cross-sectional view showing the main body of the decomposition reaction apparatus provided in the reclaimed resin composition raw material production system according to the second embodiment of the present invention.
- the reclaimed resin composition raw material production system of the present embodiment is the same as the regenerated resin composition raw material production system of the first embodiment described above except that the structure of the decomposition reaction apparatus main body is different.
- the reclaimed resin composition raw material production system of the present embodiment replaces the decomposition reaction apparatus main body 21 with respect to the regenerated resin composition raw material production system of the first embodiment described above.
- the decomposition reaction apparatus main body 21a has a tubular reactor 22a and a heater 23a for heating the tubular reactor 22a.
- the tubular reactor 22a has a plurality of tubular bodies 224 extending linearly and a plurality of connecting bodies 225 that connect the tubular bodies 224 to each other. Such a tubular reactor 22a can circulate the mixture inside the reactor!
- the tubular body 224 and the connecting body 225 are provided so as to be separable from each other. As a result, when the mixture or the first process recovery material adheres in the tubular body 224 or the coupling body 225, or the tubular body 224 or the coupling body 225 is damaged, they are removed from the decomposition reaction apparatus main body 21a. Thus, maintenance such as repair and replacement can be easily performed.
- tubular reactor 22a receives the mixture from one end (the upper end in Fig. 3) and the other end.
- the first process collection is discharged from (lower end of Fig. 3).
- the tubular reactor 22a has a regenerated resin in which the thermosetting resin has a low molecular weight by heating and pressurizing the mixture in the inside to bring the solvent into a supercritical state or a subcritical state.
- the decomposition reaction part 221a for obtaining the first treated recovered product containing selenium is constituted, and one end thereof constitutes the introduction part 222a for introducing the mixture, and the other end is the discharge for discharging the first treated recovered product.
- Configure part 223a is constituted, and one end thereof constitutes the introduction part 222a for introducing the mixture, and the other end is the discharge for discharging the first treated recovered product.
- the decomposition reaction apparatus main body 21a includes an introduction part 222a for introducing the mixture, Decomposition reaction part that obtains the first treated recovered material containing regenerated resin by reducing the molecular weight of thermosetting resin by heating and pressurizing the mixture to bring the solvent into a supercritical or subcritical state. 221a, and a discharge unit 223a for discharging the first process collection material.
- such a decomposition reaction apparatus main body 21a introduces a mixture into the introduction part 222a, and decomposes the mixture in the decomposition reaction part 221a.
- the discharge of the first treatment collection material from the discharge unit 223a is continuously performed. Therefore, it is possible to continuously and efficiently decompose the thermosetting resin in the resin composition.
- tubular reactor 22a is preferably provided so that its pipeline is along the same horizontal plane. As a result, it is possible to prevent the solid content in the mixture in the tubular reactor 22a from sinking in the direction of gravity (downward) and blocking the inlet and outlet of the pipe line of the tubular reactor 22a. wear.
- FIG. 4 is a diagram showing a schematic configuration of a reclaimed resin composition raw material production system that is useful for the third embodiment of the present invention.
- the reclaimed resin composition raw material production system la includes the polymerization reaction device 6 between the decomposition reaction device 2 and the cooling device 4, except that the regenerated waste resin of the first embodiment described above. This is the same as the oil composition raw material production system.
- the reclaimed resin composition raw material production system la of this embodiment includes a polymerization reaction device 6 between a decomposition reaction device 2 and a cooling device 4, as shown in FIG.
- the polymerization reaction apparatus 6 has a function of introducing the first treated recovered material and the polyfunctional compound and polymerizing the recycled resin and the polyfunctional compound in the first treated recovered material.
- the decomposition reaction apparatus main body 21 of the decomposition reaction apparatus 2 is in contact with the introduction side of the polymerization reaction apparatus 6.
- the polymerization reactor 6 introduces the first treated recovered material.
- a pressure device 7 is connected to the introduction side of the polymerization reaction device 6, and the polymerization reaction device 6 introduces a polyfunctional compound by the pressure of the pressure device 7.
- the cooling device 4 is connected to the discharge side of the polymerization reaction device 6 so that the polymerization reaction device 6 supplies the second processing recovery material containing the high-molecular weight regenerated resin to the cooling device 4. And then speak.
- the polyfunctional compound is not particularly limited as long as it reacts with the regenerated resin (mainly monomers and oligomers) in the first treated recovered material to increase the regenerated resin to a high molecular weight.
- an aldehyde compound can be preferably used.
- aldehyde compound examples include formaldehyde, paraform, trioxane, compounds that serve as aldehyde sources such as hexamethylenetetramine, and aqueous solutions thereof.
- formaldehyde paraform
- trioxane compounds that serve as aldehyde sources such as hexamethylenetetramine
- aqueous solutions thereof One of these is used alone. Or two or more types can be used in combination.
- the addition amount (use ratio) of the polyfunctional compound is preferably 1 to 25 parts by weight with respect to 100 parts by weight of the thermosetting resin in the resin composition. It is better to be a part. Thereby, a polymerization reaction process can be performed comparatively easily and reliably.
- the addition amount is less than the above lower limit value, there may be a case where no particular effect can be obtained with respect to the polymerization reaction (high molecular weight reaction).
- the addition amount exceeds the above upper limit, the regenerated resin will gel, and the recovery rate of the regenerated resin will decrease, or the reactor (polymerization reaction part) will be blocked and stable operation will not be possible. There is a case.
- Such a polymerization reaction apparatus 6 has a polymerization reaction part for polymerizing a regenerated resin and a polyfunctional compound, and introducing the regenerated resin and the polyfunctional compound into the polymerization reaction part, and the polymerization reaction part. It is preferable that both the polymerization reaction in step 1 and the discharge of the second treated recovered product from the polymerization reaction part are carried out continuously.
- the polymerization reaction apparatus 6 a structure such as the decomposition reaction apparatus main body 21 of the first embodiment and the decomposition reaction apparatus main body 21a of the second embodiment described above can be used.
- the decomposition reaction section 221 of the decomposition reaction apparatus main body 21 and the decomposition reaction section 221a of the decomposition reaction apparatus main body 21a constitute a polymerization reaction section.
- the pressurizing device 7 supplies the polyfunctional compound to the polymerization reaction device 6 from the outside while applying pressure. It is.
- the pressurizing device 7 is appropriately selected depending on the properties of the polyfunctional compound (for example, liquid, solution, or slurry containing a solid), the viscosity, and the like.
- the functional compound is not particularly limited as long as the functional compound can be supplied to the polymerization reaction apparatus 6 while being pressurized.
- a pressure-feeding apparatus such as a syringe pump, a plunger pump, or a diaphragm pump can be used.
- the treatment temperature in the polymerization reaction part may be appropriately selected depending on the type of thermosetting resin in the resin composition. More specifically, it is preferably 100 to 400 ° C. More preferably, the temperature is 150 to 300 ° C. This makes it possible to polymerize the reclaimed resin efficiently in a relatively short time. On the other hand, if the treatment temperature is lower than the lower limit, depending on the type of thermosetting resin, the polymerization reaction (high molecular weight) treatment may take a long time or the polymerization reaction may be difficult. There is a case. On the other hand, when the treatment temperature exceeds the above upper limit, depending on the type of thermosetting resin, an irregular reaction mainly due to thermal radicals may easily occur, or the molecular weight of the recycled resin may decrease.
- the heating in the polymerization reaction part is not particularly limited as long as the treatment temperature can be set as described above.
- the treatment temperature in the polymerization reaction section is lower than the treatment temperature in the decomposition reaction section 221 of the decomposition reaction apparatus main body 21, heating in the polymerization reaction section can be omitted.
- the first process recovery product in the decomposition reaction apparatus main body 21 may be cooled or kept warm, and the first process recovery product may be introduced into the polymerization reaction section at a temperature suitable for the polymerization reaction.
- the pressure in the polymerization reaction part is preferably controlled to a pressure suitable for the polymerization reaction as necessary. More specifically, the pressure in the polymerization reaction part is preferably 60 MPa or less (that is, atmospheric pressure to 60 MPa), more preferably atmospheric pressure to 30 MPa! /. Thereby, the polymerization reaction can be efficiently performed while suppressing the cost. On the other hand, if the pressure is less than the lower limit, the polymerization reaction may not proceed due to vaporization of the solvent or polyfunctional compound. On the other hand, if the pressure exceeds the upper limit, a large amount of cost is required for the pressure resistance design.
- the space time in the polymerization reaction part is appropriately selected according to other processing conditions, It is preferably 1 to 60 minutes. As a result, the yield of recycled resin having a molecular weight suitable for recycling can be improved. On the other hand, if the space time is less than the lower limit, the high molecular weight of the recycled resin may not be sufficiently completed. On the other hand, if the space time exceeds the upper limit, the high molecular weight of the regenerated resin may progress too much, causing gelation or a problem in production efficiency.
- Such a reclaimed resin having a high molecular weight by the polymerization reaction apparatus 6 usually has a molecular weight of 200 to 100,000 and preferably has a molecular weight distribution (MwZMn) of 2.0 or more.
- the main component is a resin component that is in the following range, more preferably in the range of 3.0 to 10.
- the molecular weight of the main component of the recycled resin means the weight average molecular weight (Mw).
- Such a high molecular weight regenerated resin has the same molecular weight as that of a chemical raw material (prepolymer) used for producing a resin composition containing a thermosetting resin. By refining as necessary, it can be reused as a prepolymer.
- the main component of the resin component having a molecular weight of 200 to 100,000 as described above means that the resin component having the molecular weight shown here is contained in an amount of 50% by weight or more.
- resin components having a molecular weight exceeding 100,000 are also included.
- the resin component having a molecular weight of 200-100,000 when a normal thermosetting resin is used, it is about 2 to 1,000 nuclei of the raw material monomer.
- the reclaimed resin mainly composed of a resin component having a molecular weight of 200 to 000 as described above is a resin component formed only by components obtained from the thermosetting resin in the resin composition.
- organic fillers contained therein may contain components obtained from the base material.
- high molecular weight regenerated resin high molecular weight is obtained by polymerizing one or more types of the regenerated resin contained in the first recovered material with a polyfunctional compound. Can be obtained.
- FIG. 5 is a diagram showing a schematic configuration of a reclaimed resin composition raw material production system that is useful in the fourth embodiment of the present invention.
- the fourth embodiment will be described with a focus on differences from the first embodiment and the third embodiment described above, and description of similar matters will be omitted.
- the same reference numerals are given to the parts having the same configuration as that of the above-described reclaimed resin composition raw material production system of the first embodiment or the third embodiment.
- the reclaimed resin composition raw material production system lb of the present embodiment is the same except that the installation position of the polymerization reaction apparatus 6 is between the solid-liquid first separation unit 51 and the second separation unit 52. This is the same as the reclaimed resin composition raw material production system la of the third embodiment described above.
- the recycled resin composition raw material production system lb includes a first separation unit 51 that separates and removes the solid residue from the first treated recovered product discharged from the decomposition reaction apparatus 2, and a solid content.
- the solid residue can be efficiently separated and extracted before the viscosity of the recycled resin increases due to the high molecular weight in the polymerization reactor 6 and the solid-liquid separation efficiency decreases.
- each part of the decomposition reaction apparatus and the reclaimed resin composition raw material production system of the present invention is replaced with any one that exhibits the same function, or other components are added. Monkey.
- the decomposition reaction part is constituted by the tubular reactor as shown in Fig. 2 or Fig. 3, but the thermosetting resin in the resin composition.
- the present invention is not limited to this as long as it can be continuously decomposed. That is, the decomposition reaction section can be constituted by a flow reactor such as various tube reactors or various tank reactors. However, among such flow reactors, it is preferable to use a tubular reactor as shown in FIG. 2 or FIG.
- a flow reactor When a flow reactor is used as a reactor constituting the decomposition reaction section, it is not necessary to set the decomposition reaction section at a uniform temperature. For example, it may be different between the former stage and the latter stage. In this case, in the former stage, the solvent and the rosin composition can be blended or swollen, and in the latter stage, a preliminary treatment for smoothly performing the low molecular weight soot can be performed. In the latter part, a temperature gradient or temperature distribution may be provided as necessary.
- the mixture of the resin composition and the solvent is supplied to the introduction unit.
- the resin composition and the solvent are separately introduced into the introduction unit. You may supply to. That is, the mixing device 31 may be omitted. Further, mixing of the resin composition and the solvent may be performed in the decomposition reaction part.
- the resin composition and the solvent are transported in the reaction device by the pressure of the pressurizing device 32 such as a pump.
- a shearing force by a single screw or a twin screw or a stirring device by other means may be provided so that the resin composition and the solvent may be conveyed in the decomposition reaction section.
- the heating of the resin composition and the solvent in the decomposition reaction part is not limited to those of the first to fourth embodiments described above, and various heating methods can be used.
- the heating method it is preferable to use a method using a heating medium in that the temperature control is easy when the processing temperature is up to about 300 ° C, and the processing temperature is 300 ° C. If it greatly exceeds, it is preferable to use means such as an open fire.
- the polymerization reaction apparatus is not limited to that of the first to fourth embodiments described above, and the same reactor as that described above can be used.
- the regenerated resin (processed recovered material) and the polyfunctional compound are separately supplied to the polymerization reaction apparatus.
- the fat or the first treatment recovery product and the polyfunctional compound may be mixed in advance and supplied to the polymerization reactor.
- the means for mixing the reclaimed resin with the first treated recovered material and the polyfunctional compound for example, a mixer provided with a static mixer or a stirring blade is used. Examples thereof include a stirrer to which mechanical stirring is applied.
- the first treated recovered product obtained in the decomposition reaction apparatus is separated into a recycled resin, a low-boiling component, and a solid residue.
- the first recovered material obtained in the decomposition reactor can be used as it is as a raw material for the reclaimed resin composition.
- the first separator 51 and the second separator 52 are not necessary.
- General purpose phenolic resin molding material (PM-8200 made by Sumitomo Beichiklite) prepared by sieving to a particle size of 750 ⁇ m or less: 250g, phenol as solvent: 650g, water: lOOg, basic A slurry was prepared by adding 12.5 g of calcium hydroxide as a catalyst and mixing for 30 minutes. The viscosity of this mixture slurry was measured at 23 ° C. using an E-type viscometer manufactured by Tokyo Keiki Co., Ltd., and found to be 0. OlPa's.
- a regenerated resin composition raw material production system equipped with a slurry pump with a maximum discharge volume of 6LZh, a maximum discharge pressure of 15MPa, and an Hastely C-276 tubular reactor with an inner diameter of 6.2mm and a total length of 13.4m Is used to set the temperature in the reactor (treatment temperature) to 300 ° C, the space time to 20 minutes, the pressure in the reactor (in the decomposition reaction section) to lOMPa, and the slurry into the tubular reactor.
- the solid residue is filtered under reduced pressure, water is distilled off at normal pressure distillation from the filtrate power, and low-boiling components containing phenol are fractionated by distillation under reduced pressure. Finally, the reclaimed resin was taken out.
- the regenerated rosin was analyzed by gel permeation chromatography (hereinafter abbreviated as GPC), and the weight average molecular weight (Mw) was 3010. Furthermore, the hydroxyl equivalent was measured and found to be 126.
- GPC gel permeation chromatography
- Example 1 instead of phenol: 650 g, operation was basically the same as that of Example 1 except that 500 g of phenol and 150 g of the low boiling point component obtained in Example 1 were used. Went. The results are summarized in Table 1.
- General-purpose phenolic resin molding material prepared by sieving to a particle size of 750 ⁇ m or less (PM-8200, manufactured by Sumitomo Beichi Crite) Hard resin: 250 g, solvent: phenol: 600 g, phenol novolak (manufactured by Sumitomo Bakelite) PR- 51714) 50 g, water: 100 g, ethylene glycol 10 g, 12.5 g of magnesium hydroxide as a basic catalyst was added and mixed for 30 minutes to prepare a slurry. The viscosity of this mixture slurry was measured at 23 ° C. using an E-type viscometer manufactured by Tokyo Keiki Co., Ltd., and found to be 0. OlPa's.
- the temperature in the reactor was 300 ° C, space time 20 minutes,
- the pressure in the reaction part is set to lOMPa, the slurry is supplied to a tubular reactor, decomposed by continuous operation, water is distilled off by atmospheric distillation, and phenol is distilled by vacuum distillation.
- the low boiling point component containing was fractionally distilled, and finally a mixture of the regenerated resin and the solid residue was taken out.
- General-purpose phenolic resin molding material prepared by sieving to a particle size of 750 ⁇ m or less (PM-8200, manufactured by Sumitomo Beichi Kureito Co., Ltd.): 250 g, solvent, phenolic: 650 g, water: 100 g, basic A slurry was prepared by adding 12.5 g of calcium hydroxide as a catalyst and mixing for 30 minutes. The viscosity of this mixture slurry was measured at 23 ° C. using an E-type viscometer manufactured by Tokyo Keiki Co., Ltd., and found to be 0. OlPa's.
- the slurry having an inner volume of 2000cm 2 Otoku After charging the lave, heat to increase the internal temperature to 280 ° C and internal pressure to 3.7MPa, and hold the system for 20 minutes while stirring at 300rpm with a paddle type and anchor type combined stirring blade After cooling to air and returning to room temperature, the solid residue of the treated product obtained is filtered under reduced pressure, and water is removed by filtration at atmospheric pressure. The boiling component was fractionally distilled, and finally the regenerated resin was taken out.
- the scale to be processed is limited by the size of the autoclave, and if the same processing amount as in Example 1 is processed at one time, gelled deposits are formed on the inner wall due to nonuniform heat transfer and stirring. Observed.
- Example 7 Using the same slurry as in Example 7, as in Comparative Example 1, the autoclave was charged and the processing was stopped because it was impossible to stir. The contents were stuck in mud.
- Example 15 parts by weight of hexamethylenetetramine was blended with 100 parts by weight of the reclaimed resin obtained in Example 1, and the gel time was measured with a hot plate at 150 ° C.
- Sarakuko regenerated fat collected in Example 1, 43 parts by weight, hexamethylenetetramine: 7 parts by weight, wood flour: 40 parts by weight, solid residue obtained in Example 1: 10
- the mixture was melt kneaded at 110 ° C. for 2 minutes with a kneader to prepare a material.
- a bending test piece was produced from this material under conditions of a mold temperature: 175 ° C., a molding pressure: 10 MPa, and a molding time: 3 minutes.
- the flexural strength and flexural modulus were measured according to JIS-K6911 “General Test Method for Thermosetting Plastics”. Table 2 shows the measurement results.
- Example 10 gel time and materials were evaluated in the same manner as in Example 10 except that 10 parts by weight of calcium carbonate was added instead of the solid residue obtained in Example 1. It was. The formulation and results are shown in Table 2.
- Example 10 in place of the regenerated resin and the solid residue obtained in Example 1, using the mixture of the regenerated resin and the solid residue obtained in Example 3, blended as shown in Table 2, Materialization was evaluated. The results are shown in Table 2. In this example, since the solid residue was contained in the resin, the gel time was not measured. There was no problem of curing when forming the bending test piece of the material.
- Example 10 instead of the recycled resin obtained in Example 1, 43 parts by weight of phenol novolak (PR-51714 manufactured by Sumitomo Bakelite), instead of the solid residue obtained in Example 1, The same operation as in Example 10 was performed except that 10 parts by weight of the obtained solid residue was used. The results are shown in Table 2.
- Example 10 instead of the regenerated resin obtained in Example 1, 43 parts by weight of phenol novolak (PR-51714, manufactured by Sumitomo Bakelite), 10% by weight of calcium carbonate instead of the solid residue obtained in Example 1 The same operation as in Example 10 was performed, except that the part was used. The results are shown in Table 2.
- Example 10 in place of the regenerated resin obtained in Example 1, 43 parts by weight of the reclaimed resin obtained in Comparative Example 1, and in place of the solid residue obtained in Example 1, 10 parts by weight of calcium carbonate. The same operations as in Example 10 were performed except that the parts were used. The results are shown in Table 2.
- Residues were dried at 120 ° C for 8 hours before use, and aggregates were defrosted using a cooking mixer.
- General purpose phenolic resin molding material prepared by sieving to a particle size of 750 ⁇ m or less (PM-8200, manufactured by Sumitomo Beichi Kurei): 250 g, phenolic: 650 g, water: 100 g, base insect A slurry was prepared by adding 12.5 g of calcium hydroxide as a medium and mixing for 30 minutes. The viscosity of this mixture slurry was measured at 23 ° C. using an E-type viscometer manufactured by Tokyo Keiki Co., Ltd., and found to be 0. OlPa's.
- a flow reactor for a decomposition reactor and a flow reactor for a polymerization reactor were connected by a high-pressure pipe.
- the flow reactor for the decomposition reactor is a tuberoid reactor made of Northerloy C-276 with an inner diameter of 6.2 mm and a total length of 13.4 m, which has a maximum discharge of 6 LZh and a maximum discharge.
- a slurry pump with a pressure of 15 MPa is connected.
- the flow reactor for the polymerization reactor is a Hastelloy C-276 tubular reactor with an inner diameter of 6.2 mm and a total length of 6.7 m, which includes a maximum discharge volume of lLZh and a maximum discharge pressure of 15 MPa. Plunger pump is connected.
- the temperature in the reactor was set to 300 ° C, the space time was set to 20 minutes, the pressure in the reactor was set to lOMPa, and the slurry was supplied to the tubular reactor. Decomposed by continuous operation.
- the obtained product mixture is introduced into the reactor of the polymerization reactor through a high-pressure pipe, and 37% formalin aqueous solution: 135 g (formaldehyde: 50 g) is injected by the plunger pump to react.
- the polymerization temperature was set to 250 ° C, the space time was set to 10 minutes, the internal pressure was set to lOMPa, and the polymerization reaction was carried out continuously.
- Example 15 Example 16 Example 17 Example 18 Example 19 Example 20 Example 21 Example 22 Example 23
- Plastic types including thermosetting resin 1) ⁇ PP ⁇ P ⁇ P ⁇ ⁇ Plastic particle size including thermosetting resin 2) 750 750 750 750 750 750 750 1000 750 750 Amount of plastic including thermosetting resin (g) 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 Total amount of phenolic compounds (g) 650 650 650 650 650 650 380 650 min
- thermosetting resin Using the same apparatus and operation as in Example 15, the plastic containing the thermosetting resin was decomposed and then polymerized, and then water was removed by atmospheric distillation without performing solid-liquid separation. Then, low-boiling components containing phenol were fractionated by distillation under reduced pressure, and finally a mixture of regenerated resin and solid residue was taken out.
- a solid-liquid separation device is installed immediately after the reactor for continuously decomposing the plastic containing the thermosetting resin, and after the solid-liquid separation device, it continuously reacts with aldehydes. Examples will be described in the case where a polymerization reaction apparatus is provided.
- Hard resin of general-purpose phenolic resin molding material (PM-8200 made by Sumitomo Beichiklite) prepared by sieving to a particle size of 750 ⁇ m or less: 250 g, solvent: phenol: 650 g, water: 100 g, As a basic catalyst, add 12.5 g of calcium hydroxide and mix for 30 minutes. A rally was prepared. The viscosity of this mixture slurry was measured at 23 ° C. using an E-type viscometer manufactured by Tokyo Keiki Co., Ltd., and found to be 0. OlPa's.
- a plunger pump with a maximum discharge volume of lLZh and a maximum discharge pressure of 15 MPa was connected, using a Hastelloy C-276 tubular reactor with an inner diameter of 6.2 mm and a total length of 6.7 m, 37% formalin solution: 135 g (formaldehyde: 50 g) and the filtrate were injected into the reactor for this polymerization reaction, the temperature in the reactor was 250 ° C, the space time was 10 minutes, and the pressure in the reactor was The polymerization reaction was carried out continuously by setting to lOMPa.
- Example 15 parts by weight of hexamethylenetetramine was blended with 100 parts by weight of the regenerated resin obtained in Example 15, and the gel time was measured with a hot plate at 150 ° C.
- Sarako regenerated fat collected in Example 15: 43 parts by weight, hexamethylenetetramine: 7 parts by weight, wood flour: 40 parts by weight, solid residue obtained in Example 15: 10
- the mixture was melt kneaded at 110 ° C. for 2 minutes with a kneader to prepare a material.
- a bending test piece was produced from this material under conditions of mold temperature: 175 ° C., molding pressure: 10 MPa, molding time: 3 minutes.
- the bending strength 'flexural modulus was measured according to JIS-K6911 “General Test Method for Thermosetting Plastics”. Table 5 shows the measurement results.
- Example 32 instead of the regenerated resin obtained in Example 15, 43 parts by weight of the regenerated resin obtained in Example 16 and in place of the solid residue obtained in Example 15, calcium carbonate. Except for blending 10 parts by weight, gel time and materials were evaluated in the same manner as in Example 32. The formulation and results are shown in Table 5.
- Example 32 instead of the regenerated resin obtained in Example 15, 43 parts by weight of the regenerated resin obtained in Example 24 and in place of the solid residue obtained in Example 15, calcium carbonate. Except for blending 10 parts by weight, gel time and materials were evaluated in the same manner as in Example 32. The formulation and results are shown in Table 5.
- Example 32 instead of the regenerated resin and the solid residue obtained in Example 15, the mixture of the regenerated resin and the solid residue obtained in Example 23 was used and blended as shown in Table 5, Materialization evaluation was performed. The results are shown in Table 4. In this example, since the solid residue was contained in the regenerated resin, the gel time was not measured. There was no problem of hardness when forming the bending test piece of the material.
- Example 32 instead of the regenerated resin obtained in Example 15, phenol novolac
- a reclaimed resin composition capable of continuously producing a regenerated resin composition raw material such as industrial waste and general waste containing thermosetting resin.
- object Providing a raw material production system, a method for producing a reclaimed resin composition using this reclaimed resin composition raw material production system, and a reclaimed resin produced using this reclaimed resin composition raw material production method It is possible to provide a fat composition raw material, and a molded article obtained by molding the regenerated fat composition raw material as a fat composition.
- the decomposition reaction apparatus, reclaimed resin composition raw material production system, and reclaimed resin composition raw material production method of the present invention are based on the production of reclaimed resin composition from industrial waste and general waste containing thermosetting resin.
- the raw material can be produced continuously.
- the reclaimed resin composition raw material and molded body of the present invention are obtained using the decomposition reaction apparatus, the regenerated resin composition raw material production system, and the regenerated resin composition raw material production method of the present invention. Therefore, the decomposition reaction apparatus, reclaimed resin composition raw material production system, reclaimed resin composition raw material production method, reclaimed resin composition raw material, and molded article of the present invention have industrial applicability.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020077011079A KR101318495B1 (ko) | 2004-11-09 | 2005-10-07 | 분해 반응 장치, 재생수지 조성물 원료 제조 시스템,재생수지 조성물 원료 제조방법, 재생수지 조성물 원료 및성형체 |
| EP05790657.0A EP1829920B9 (en) | 2004-11-09 | 2005-10-07 | Apparatus and method for producing raw material for recycled resin composition |
| CN200580038321XA CN101056923B (zh) | 2004-11-09 | 2005-10-07 | 分解反应装置、再生树脂组合物原料制造系统、再生树脂组合物原料制造方法、再生树脂组合物原料及成型体 |
| US11/667,107 US8188154B2 (en) | 2004-11-09 | 2005-10-07 | Decomposition reaction apparatus, system for producing raw material for recycled resin composition, method for producing raw material for recycled resin composition, raw material for recycled resin composition, and formed article |
| JP2006544806A JPWO2006051663A1 (ja) | 2004-11-09 | 2005-10-07 | 分解反応装置、再生樹脂組成物原料製造システム、再生樹脂組成物原料製造方法、再生樹脂組成物原料、および成形体 |
| CA 2587038 CA2587038C (en) | 2004-11-09 | 2005-10-07 | Decomposition reaction apparatus, system for producing raw material for recycled resin composition, method for producing raw material for recycled resin composition, raw material for recycled resin composition, and formed article |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-325606 | 2004-11-09 | ||
| JP2004325606 | 2004-11-09 | ||
| JP2005-096501 | 2005-03-29 | ||
| JP2005096501 | 2005-03-29 |
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| Publication Number | Publication Date |
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| WO2006051663A1 true WO2006051663A1 (ja) | 2006-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2005/018643 Ceased WO2006051663A1 (ja) | 2004-11-09 | 2005-10-07 | 分解反応装置、再生樹脂組成物原料製造システム、再生樹脂組成物原料製造方法、再生樹脂組成物原料、および成形体 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8188154B2 (ja) |
| EP (2) | EP1829920B9 (ja) |
| JP (1) | JPWO2006051663A1 (ja) |
| KR (1) | KR101318495B1 (ja) |
| CN (1) | CN101056923B (ja) |
| CA (1) | CA2587038C (ja) |
| WO (1) | WO2006051663A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519505B (zh) * | 2009-02-24 | 2011-06-08 | 上海大学 | 高温水相分解热固性环氧树脂或其复合材料的方法 |
| US20130092602A1 (en) * | 2010-03-24 | 2013-04-18 | Zuolin Zhu | Continuous Reaction System Comprising Subcritical Or Supercritical Liquid As Solvent And Reactant As Solid |
| WO2013179452A1 (ja) * | 2012-05-31 | 2013-12-05 | 株式会社アイテック | 化学反応装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2451900A (en) * | 2007-08-17 | 2009-02-18 | Uniqsis Ltd | Flow apparatus |
| CA2913819C (en) | 2008-09-12 | 2018-01-30 | Sumitomo Bakelite Co., Ltd. | Method for decomposing polymer material, method for producing recycled resin, and method for recovering inorganic filler |
| TWI432457B (zh) * | 2008-11-21 | 2014-04-01 | Lg Chemical Ltd | 製造聚合物粒子之裝置及製造聚合物粒子之方法 |
| WO2011032202A1 (en) * | 2009-09-16 | 2011-03-24 | Ignite Energy Resources Pty Ltd | An assembly for reducing slurry pressure in a slurry processing system |
| EP3088368A1 (en) | 2015-04-29 | 2016-11-02 | SCW Systems B.V. | Apparatus for and method of processing a slurry containing organic components |
| CN105885040B (zh) * | 2015-05-12 | 2019-05-10 | 上海凯赛生物技术研发中心有限公司 | 用于制备聚酰胺的装置、预聚方法、以及聚酰胺的生产设备、生产方法 |
| US10662527B2 (en) | 2016-06-01 | 2020-05-26 | Asm Ip Holding B.V. | Manifolds for uniform vapor deposition |
| CN109529722B (zh) * | 2018-12-20 | 2021-07-13 | 山东玉皇化工有限公司 | 一种低沸点物料向高压装置连续进料的方法与装置 |
| US11492701B2 (en) | 2019-03-19 | 2022-11-08 | Asm Ip Holding B.V. | Reactor manifolds |
| US11110428B2 (en) * | 2019-10-09 | 2021-09-07 | Saudi Arabian Oil Company | Hydrodearylation reactor |
| KR20210048408A (ko) | 2019-10-22 | 2021-05-03 | 에이에스엠 아이피 홀딩 비.브이. | 반도체 증착 반응기 매니폴드 |
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- 2005-10-07 EP EP05790657.0A patent/EP1829920B9/en not_active Expired - Lifetime
- 2005-10-07 CA CA 2587038 patent/CA2587038C/en not_active Expired - Lifetime
- 2005-10-07 US US11/667,107 patent/US8188154B2/en not_active Expired - Fee Related
- 2005-10-07 CN CN200580038321XA patent/CN101056923B/zh not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2894192A3 (en) | 2015-08-12 |
| EP1829920B9 (en) | 2017-01-04 |
| EP1829920A1 (en) | 2007-09-05 |
| CN101056923A (zh) | 2007-10-17 |
| KR20070085373A (ko) | 2007-08-27 |
| KR101318495B1 (ko) | 2013-10-16 |
| JPWO2006051663A1 (ja) | 2008-05-29 |
| EP2894192B1 (en) | 2017-08-02 |
| EP1829920B1 (en) | 2016-03-30 |
| EP2894192A2 (en) | 2015-07-15 |
| EP2894192B9 (en) | 2017-11-15 |
| CA2587038A1 (en) | 2006-05-18 |
| CN101056923B (zh) | 2011-06-01 |
| US8188154B2 (en) | 2012-05-29 |
| US20090215912A1 (en) | 2009-08-27 |
| CA2587038C (en) | 2011-05-31 |
| EP1829920A4 (en) | 2008-09-03 |
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