[go: up one dir, main page]

WO2025083050A1 - Procédé de recyclage d'un matériau polymère w comprenant un polymère p - Google Patents

Procédé de recyclage d'un matériau polymère w comprenant un polymère p Download PDF

Info

Publication number
WO2025083050A1
WO2025083050A1 PCT/EP2024/079191 EP2024079191W WO2025083050A1 WO 2025083050 A1 WO2025083050 A1 WO 2025083050A1 EP 2024079191 W EP2024079191 W EP 2024079191W WO 2025083050 A1 WO2025083050 A1 WO 2025083050A1
Authority
WO
WIPO (PCT)
Prior art keywords
polymer
mixture
rll
pieces
iii
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/EP2024/079191
Other languages
English (en)
Inventor
Oliver Pikhard
Tobias May
Miriam Magdalena SCHAAKE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of WO2025083050A1 publication Critical patent/WO2025083050A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C08J11/105—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 enzymes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • 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
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • 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

  • the present invention relates to a process for recycling a polymeric material W comprising a polymer P, said process being a mechanical and enzymatic recycling process and to a recycling unit for carrying out said process.
  • the impregnation of the polymer to be recycled, such as cellulose, with NaOH before enzymatic digestion is also very helpful to achieve faster conversion rates.
  • the polymer must then be washed prior to the enzymatic hydrolysis in order not to impair the function of the enzymes. This is an additional treatment step that is expensive and thus endangers the entire profitability of the process.
  • the process of the present invention permits to improve the recycling of polymeric material such as textile fibers (cellulose-based material, PET and polyamide textile fibers), in particular showing better yields while being cost-effective.
  • polymeric material such as textile fibers (cellulose-based material, PET and polyamide textile fibers)
  • the present invention relates to a process for recycling a polymeric material W, the process comprising
  • (111.4) passing the mixture removed from C1 according to (iii.3) into a milling device MD and removing the obtained mixture from MD; wherein (iii) further comprises recirculating the mixture removed from MD according to (iii.4) into C1 by introducing it into C1 in step (iii.2); wherein the recirculating is performed n times, with n 2 or more;
  • a polymeric material means a material comprising one or more polymers.
  • the polymeric material W is a waste material, the waste material more preferably including pre-consumer waste material and post-consumer waste material.
  • pre-consumer waste material refers to waste material obtained from the manufacturers (such as textile scraps), retailers, and so on.
  • the shredding device S(W0) used in (i.2) is one or more of a shredder, a guillotine and a cutting mill, more preferably a shredder, a guillotine or a cutting mill, more preferably a shredder, the shredder being more preferably a double-shaft shredder or a four-shaft shredder.
  • shredders are disclosed in US 2015/0273479 A1 , US 2005/0242221A1 , CN 216094089 U and WO2023/280814 A1 .
  • Shredders that can be used in the process of the present invention are commercially available.
  • the length of the pieces pO of the polymeric materials varies from a piece to another and is in the range of from 20 mm to 150 mm, more preferably in the range of from 20 to 100 mmm, the length of the pieces being the Feret diameter of the pieces.
  • the length of the pieces p1 of the polymeric material W is in the range of from 20 mm to 150 mm, more preferably in the range of from 20 to 100 mm, the length of the pieces being the Feret diameter of the pieces.
  • sorting according to (i.3) is optical sorting, more preferably the optical sorting is hy- perspectral or infrared sorting, more preferably near-infrared sorting or mid-infrared sorting, more preferably near-infrared sorting.
  • the polyamide textile fibers are one or more of polyamide 6 textile fibers, polyamide 6.6 textile fibers, polyamide 6.9 textile fibers and polyamide 6.10 textile fibers. More preferably, the polyamide textile fibers are one or more of polyamide 6 textile fibers and polyamide 6.6 textile fibers, more preferably polyamide 6 textile fibers or polyamide 6.6 textile fibers.
  • the present invention preferably relates to a process for recycling a textile polymeric material W being cellulose-based material textile fibers, the process comprising
  • the length of the pieces p2 obtained according to (ii) is of at most 20 mm, preferably lower than 20 mm, the length of the pieces being the Feret diameter of the pieces.
  • shredding according to (ii) is dry shredding.
  • dry shredding means shredding performed in the absence of solvent.
  • no base is added into C1 , such as NaOH, KOH.
  • C1 such as NaOH, KOH.
  • no rinsing or washing is performed prior to introducing M1 into Rll according to (iv).
  • Preferably bringing in contact what is introduced into the container C1 according to (iii.2) comprises mixing what is introduced into the container C1.
  • the container C1 is a stirred vessel.
  • the stirred vessel is a temperature-controlled/temperature-adjustable stirred vessel.
  • the temperature of the mixture in C1 is in the range of from 20 to 80 °C, more preferably in the range of from 40 to 60 °C, more preferably in the range of from 45 to 55 C.
  • “what is introduced into the container C1” refers to water and the pieces p2 obtained according to (ii) and the mixture removed from MD according to (iii.4) when it is recirculated.
  • the pieces p2 comprising the polymer P obtained according to (ii) are introduced into C1 according to (iii.1) in an amount in the range of from 0.5 to 10 weight-%, more preferably in the range of from 1 to 8 weight-%, more preferably in the range of from 3 to 6 weight-%, based on the sum of the weight of water and the weight of said pieces.
  • the milling device MD used in (iii.3) is one or more of a wet rotor mill and a stirred media mill, more preferably a wet rotor mill.
  • the wet rotor mill As to the wet rotor mill, it comprises a rotor and a stator, wherein preferably the gap between the rotor and the stator is in the range of from 50 to 1000 micrometers, more preferably of from 100 to 500 micrometers.
  • the wet rotor mills that can be used in the present process are commercially available.
  • the term “gap” used in relation with a mill refers to the shortest possible distance between the rotor and the stator.
  • wet rotor mill can be used interchangeably with “colloidal mill” or “refiner” or “high shear rotor stator mill” or “inline disperser”. Such apparatus are known by the skilled person in the art.
  • stirred media mill it comprises a rotor and a stator, wherein preferably multiple gaps between the rotor and the stator are present and in the range of from 100 to 2000 micrometers, more preferably of from 700 to 1200 micrometers.
  • stirred media mill can be called stirred media mill without screen.
  • the stirred media mills that can be used in the present process are commercially available. Stirred media mill are for example disclosed in US 2023/0158511 A1 and AT 390456 B.
  • stirred media mill can be used interchangeably with “agitator ball mill” or “agitator bead mill”.
  • n is in the range of from 5 to 250, more preferably in the range of from 50 to 220, more preferably in the range of from 100 to 160.
  • step (iii) is performed in the absence of enzyme.
  • the recirculation according to (iii) is performed with one or more pumps.
  • y is in the range of from 2 to 30, more preferably in the range of from 5 to 20.
  • the enzyme for degrading P used in (iv) is a cellulase, a PETase, a protease, an amidase and/ora cutinase, more preferably the enzyme is a cellulase or a PETase, more preferably a cellulase.
  • the cellulase used in the process of the present invention is SpartecTM CEL 100 (from BASF).
  • SpartecTM CEL 100 has a density of 1.05 - 1.1 g/mL and a pH of 4.2 to 4.5.
  • PETase is PHL7.
  • the enzyme is used in (iv) at a concentration in the range of from 0.5 to 40 weight-%, more preferably in the range of from 1 to 20 weight-% based on the dry weight of the pieces p3 of the polymer P.
  • the amount of the enzyme used in (iv) is in the range of from 0.5 to 40 mg per gram of the pieces p3 of PET, more preferably in the range of from 1 to 10 mg per gram of the pieces p3 of PET.
  • the activity of the enzyme is in the range of from 5 to 100 FPU, more preferably in the range of from 10 to 40 FPU.
  • the reactor unit comprises one or more milling devices.
  • the one or more reactors Rllm are one or more stirred vessels. More preferably the one or more stirred vessels are temperature-controlled or temperature-adjustable. Indeed, depending on the reaction with the enzyme the vessel might need to be either cooled or heated.
  • the one or more stirred vessels can be heated stirred vessels or cooled stirred vessels.
  • Rll further comprises m-1 milling device(s) for recirculating x times the mixture to Rllm, with x being more preferably of from 1 to 10.
  • x being more preferably of from 1 to 10.
  • Rll further comprises 3 milling device(s) MDO, MD1 and MD2 for recirculating x times the mixture to the respective units RU1 , RU2 and RU3, respectively.
  • the mixture is introduced into RU1 , passed in MDO and recirculated x times.
  • MDO milling device(s)
  • MD1 and MD2 for recirculating x times the mixture to the respective units RU1 , RU2 and RU3, respectively.
  • the mixture is introduced into RU1 , passed in MDO and recirculated x times.
  • the respective mixture will be transferred from RU1 to RU2.
  • the mixture will then be passed from RU2 to MD1 and recirculated x times in RU2.
  • the respective mixture is transferred from RU2 to RU3.
  • x 1 to 10, more preferably 2 to 10.
  • the respective mixture will be transferred from CTq to CTq+1.
  • CTq+1 being located downstream of CTq.
  • Rll comprises 4 compartments CT1 , CT2, CT3 and CT4 arranged in series.
  • Rll further comprises 3 milling device(s) MDO, MD1 and MD2 for recirculating x times the mixture to the respective compartments CT 1 , CT2, CT3 and CT4 in Rll.
  • the mixture is introduced into CT1 , passed in MDO and recirculated x times.
  • the respective mixture will be transferred from CT1 to CT2.
  • the mixture will then be passed from CT2 to MD1 and recirculated x times in CT2.
  • the respective mixture is transferred from CT2 to CT3.
  • x 1 to 10, more preferably 2 to 10.
  • Rll comprises one reactor RUT, preferably a stirred vessel, and further comprises a milling device MD’ for recirculating x times the mixture to the reactor.
  • MD milling device
  • x 1 to 10, more preferably 2 to 10.
  • the present invention relates to a process for recycling a polymeric material W, the process comprising
  • the batches of M1 are subjected one by one to depolymerization in (iv).
  • a batch B(i) is introduced into the reactor Rll’ comprised in Rll and brought in contact with the enzyme E(i) for degrading the polymer P as well as with M2(i-1) comprised in Rll’, obtaining a mixture MB(i) in Rll';
  • y is in the range of from 2 to 30, more preferably in the range of from 5 to 20.
  • the depolymerization conditions comprises a depolymerization temperature in the range of from 15 to 80 °C.
  • the depolymerization temperature will depend on the enzyme used.
  • the enzyme used in (iv) is cellulase
  • the depolymerization conditions comprises a depolymerization temperature in the range of from 15 to 80 °C, preferably in the range of from 30 to 70 °C, more preferably in the range of from 40 to 60 °C, more preferably in the range of from 45 to 55 °C.
  • the depolymerization conditions comprises a depolymerization pressure of about 1 atm.
  • Preferably (iv) further comprises introducing water into Rll, more preferably in the one or more reactors comprised in Rll.
  • (iv) further comprises adding a buffer solution in Rll, more preferably in the one or more reactors comprised in Rll. This will permit to maintain the pH in acceptable ranges for the enzyme to be effective.
  • the buffer solution is a citric acid buffer, more preferably at a concentration of in the range of from 0.01 to 0.1 mol per kg of pieces p3 of P, more preferably in the range of from 0.03 to 0.08 mol per kg of pieces p3 of P.
  • a base such as NaOH might be necessary when the enzyme used is PETase for degrading PET comprised in p3 to maintain an acceptable pH.
  • the pH of the liquid phase of the mixture comprised in Rll is in the range of from 3 to 7, more preferably in the range of from 4 to 6.
  • the process of the present invention further comprises after (iii) and prior to (iv), passing M1 through a separation unit Sil, obtaining M1 depleted in water and obtaining a liquid mixture comprising water.
  • a separation unit Sil is one or more of a centrifuge, a cyclone, a membrane filter, a screen or a decanter, more preferably one or more of a centrifuge, a cyclone and a decanter, more preferably a centrifuge.
  • the present invention relates to a process for recycling a polymeric material W, the process comprising
  • the process further comprises after (iii), and prior to (iv), and optionally prior to passing M1 in Sil as defined in herein above, storing and/or mixing M1 provided according to (iii) or M1 depleted in water obtained as defined herein above, in a container C2 and removing M1 from C2.
  • the container C2 is one or more of a stirred vessel and a non-stirred vessel, more preferably a stirred vessel.
  • the vessel is heated.
  • (iv) is performed semi-continuously or batchwise.
  • M2 obtained according to (iv) further comprises a polymer Q other than polymer P.
  • the process further comprises separating the one or more monomers of P from the polymer Q other than polymer P in M2, obtaining a mixture M2’ comprising the one or more monomers of P and a mixture M2” comprising Q; subjecting M2” to a subsequent depolymerization stage comprising bringing in contact the M2” with an enzyme for degrading the polymer Q in a reactor unit and subjecting to depolymerization conditions, obtaining a mixture M2”(1) comprising one or more monomers of Q.
  • the present invention further relates to a recycling unit for carrying out a process for recycling a polymeric material W according to the present invention, the unit comprising a shredding device S(W) for shredding pieces p1 of the polymeric material W comprising the polymer P; a container C1 ; a milling device MD; a means for recirculating the mixture from MD to C1 ; and a reactor unit Rll.
  • the shredding device S(W) used in (ii) is a shredder, a hammer mill, a guillotine or a cutting mill, more preferably a hammer mill or a cutting mill.
  • the milling device MD is one or more of a wet rotor mill and a stirred media mill, more preferably a wet rotor mill.
  • Rll comprises a reactor Rll’ and a milling device MD’, more preferably one reactor Rll’ and one milling device MD’.
  • the means for recirculating the mixture from MD to C1 comprises one or more pumps.
  • the recycling unit further comprises a separation unit Sil, more preferably being one or more of a centrifuge, a cyclone, a membrane filter, a screen or a decanter, more preferably one or more of a centrifuge, a cyclone and a decanter, more preferably a centrifuge.
  • a separation unit Sil more preferably being one or more of a centrifuge, a cyclone, a membrane filter, a screen or a decanter, more preferably one or more of a centrifuge, a cyclone and a decanter, more preferably a centrifuge.
  • the present invention further relates to a recycling unit for carrying out a process for recycling a polymeric material W according to the present invention, the unit comprising a shredding device S(W) for shredding pieces p1 of the polymeric material W comprising the polymer P; a container C1 ; a milling device MD; a means for recirculating the mixture from MD to C1 ; and a reactor unit Rll, Rll comprising a reactor Rll’ and a milling device MD’, more preferably one reactor Rll’ and one milling device MD’; a separation unit Sil, more preferably being one or more of a centrifuge, a cyclone, a membrane filter, a screen or a decanter, more preferably one or more of a centrifuge, a cyclone and a decanter, more preferably a centrifuge.
  • a separation unit Sil more preferably being one or more of a centrifuge, a cyclone, a membrane filter, a screen or a decan
  • the unit further comprises a shredding device S(W0), S(W0) being located upstream of S(W), S(W0) more preferably being one or more of a shredder, a guillotine and a cutting mill, more preferably a shredder, a guillotine or a cutting mill, more preferably a shredder, the shredder being more preferably a double-shaft shredder or a four-shaft shredder.
  • a shredding device S(W0) being located upstream of S(W)
  • S(W0) more preferably being one or more of a shredder, a guillotine and a cutting mill, more preferably a shredder, a guillotine or a cutting mill, more preferably a shredder, the shredder being more preferably a double-shaft shredder or a four-shaft shredder.
  • the present invention further relates to a computer program comprising instructions which, when the program is executed by the recycling unit according to the present invention, cause the recycling unit to perform the process according to the present invention.
  • the present invention further relates to a computer-readable storage medium comprising instructions which, when the instructions are executed by the recycling unit according to the present invention cause the recycling unit to perform the process according to the present invention.
  • the present invention further relates to a non-transient computer-readable medium including instructions that, when executed by one or more processors, cause the one or more processors to perform the process according to the present invention.
  • the present invention relates to a process, preferably to the process as described herein above, which (further) comprises the step of converting the pieces p10 of polymeric materials containing a polymer different to the polymer P obtained in (i.3) obtainable by or obtained by the process as described herein above or a chemical material obtainable by or obtained by the process as described herein above or the one or more monomers of polymer Q obtainable by or obtained by the process as described herein above to obtain a product PRF1.
  • the present invention relates to a process comprising the step(s) of using the recycling unit as described herein above to obtain pieces p10 of polymeric materials containing a polymer different to the polymer P or to obtain one or more monomers of polymer Q; and preferably converting the pieces p10 of polymeric materials containing a polymer different to the polymer P or the one or more monomers of polymer Q to obtain a product PRF1.
  • the product PRF1 is selected from: i) building block or monomer; or ii) polymer, preferably polymer A, polymer composition, preferably polymer composition A, or polymer product, preferably polymer product A; or iii) industrial use polymer, industrial use surfactant, descaling compound, industrial use biocide, industrial use solvent, industrial use dispersant, composition thereof or formulation thereof; or iv) agrochemical composition, agrochemical formulation auxiliary or agrochemically active ingredient; or v) active pharmaceutical ingredient or intermediate thereof, pharmaceutical excipient, animal feed additive, human food additive, dietary supplements, aroma chemical or aroma composition; or vi) aqueous polymer dispersion, preferably polyurethane or polyurethane - poly(meth)acry- late hybrid polymer dispersion, emulsion, binder for paper and fiber coatings, UV-curable acrylic polymer for hot melts and coatings polyisocyanates, hyperbranched polyester polyol, polymeric dispersant for polymer,
  • the content of the polymer different to the polymer P or the chemical material or the pieces p10 of polymeric materials containing a polymer different to the polymer P in the product PRF1 is 1 weight-% or more, preferably 2 weight-% or more, more preferably 5 weight-% or more, more preferably 15 weight-% or more, more preferably 30 weight-% or more, more preferably 40 weight-% or more, more preferably 60 weight-% or more, more preferably 80 weight-% or more, more preferably 90 weight-% or more, more preferably 95 weight-% or more; and/or that the content of the polymer different to the polymer P or the chemical material or the pieces p10 of polymeric materials containing a polymer different to the polymer P in the product PRF1 is 100 weight-% or less, preferably 95 weight-% or less, more preferably 90 weight-% or less, more preferably 50 weight-% or less, more preferably 25 weight-% or less,
  • the product PRF1 is a product as described in Reference RF1 ; paragraphs [1000] to [8005],
  • the process described herein is further a process for the production of a product, preferably product PRF1 .
  • the converting step to obtain the product PRF1 preferably comprises one or more step(s) as described below and can be performed by conventional methods well known to a person skilled in the art.
  • the converting step preferably comprises one or more step(s) selected from: recycling, preferably depolymerizing, gasifying, pyrolyzing, and/or steam cracking; and/or purifying, preferably crystallizing, (solvent) extracting, distilling, evaporating, hydrotreating, absorbing, adsorbing and/or subjecting to ion exchanger; and/or assembling, preferably foaming, synthesizing, chemical conversion, chemically transforming, polymerizing and/or compounding; and/or forming, preferably foaming, extruding and/or molding; and/or finishing, preferably coating and/or smoothing.
  • building block comprises compounds, which are in a gaseous or liquid state under standard conditions of 0°C and 0.1 MPa. Building blocks are typically used in chemical industry to form secondary products, which provide a higher structural complexity and/or higher molecular weight than the building block on which the secondary product is based.
  • the building block is preferably selected from the group consisting of hydrogen, carbon monoxide, carbon dioxide, ethylene oxide, ethylene glycols, syngas comprising a mixture of hydrogen and carbon monoxide, alkanes, alkenes, alkynes and aromatic compounds.
  • the alkanes, alkenes, alkynes and aromatic compounds comprise in particular 1 to 12 carbon atoms, respectively.
  • the term “monomer”, as used herein, comprises molecules, which can react with each other to form polymer chains by polymerization.
  • the monomer is preferably selected from the group consisting of (meth)acrylic acid, salts of (meth)acrylic acid; in particular sodium, potassium and zinc salts; (meth)acrolein and (meth)acrylates.
  • (Meth)acrylates comprising 1 to 22 carbon atoms are preferred, in particular comprising 1 to 8 carbon atoms.
  • the terms (meth)acrylic acid, (meth)acrolein or (meth)acrylate relate to acrylic acid, acrolein or acrylate and also to methacrylic acid, methacrolein or methacrylate, where applicable.
  • the monomer can be selected from hexamethylenediamine (HMD) and adipic acid.
  • the building block can further be an intermediate compound.
  • intermediate compound comprises organic reagents, which are applied for formation of com- pounds with higher molecular complexity.
  • the intermediate compound can be selected for example from the group consisting of phosgene, polyisocyanates and propylene oxide.
  • the polyisocyanates are in particular aromatic di- and polyisocyanates, preferably toluene diisocyanate (TDI) and/or diphenylmethane diisocyanate (MDI).
  • polymer A comprises thermoplastic, e.g., polyamide or thermoplastic polyurethane, thermoset, e.g., polyurethane, elastomer, e.g., polybutadiene, or a copolymer or a mixture thereof and is defined in more detail in paragraphs [2001] to [2007] of Reference RF1.
  • polymer composition A comprises all compositions comprising a polymer as described above and one or more additive(s), e.g. reinforcement, colorant, modifier and/or flame retardant, and is defined in more detail in paragraph [2008] of Reference RF1.
  • additive(s) e.g. reinforcement, colorant, modifier and/or flame retardant
  • polymer product A comprises any product comprising the polymer A and/or polymer composition A as described above and is defined in more detail in paragraphs [2009] and [2010] of Reference RF1.
  • the step(s) to obtain the polymer, preferably polymer A, polymer composition, preferably polymer composition A or polymer product, preferably polymer product A is/are described in more detail in paragraph [2011] of Reference RF1.
  • the term “industrial use polymer”, as used herein, comprises rheology, polycarboxylate, alkox- ylated polyalkylenamine, alkoxylated polyalkylenimine, polyether-based, dye inhibition and soil release cleaning polymers defined in more detail in paragraphs [3035] to [3044] of Reference RF1.
  • the term “industrial use surfactant”, as used herein, comprises non-ionic, anionic and amphoteric industrial use surfactants defined in more detail in paragraphs [3008] to [3034] of Reference RF1.
  • the term “industrial use descaling compound”, as used herein, comprises nonphosphate based builders (NPB) and phosphonates (CoP) described in more detail in paragraphs [3001] to [3005] of Reference RF1.
  • the term “industrial use biocide”, as used herein, refers to a chemical compound that kills microorganisms or inhibits their growth or reproduction defined in more detail in paragraphs [3006] to [3007] of Reference RF1.
  • the term “industrial use solvent”, as used herein, comprises alkyl amides, alkyl lactamides, alkyl esters, lactate esters, alkyl diester, cyclic alkyl diester, cyclic carbonates, aromatic aldehydes and aromatic esters defined in more detail in paragraphs [3045] to [3055] of Reference RF1.
  • the term “industrial use dispersant”, as used herein, comprises anionic and non-ionic industrial use dispersants defined in more detail in paragraphs [3056] to [3058] of Reference RF1.
  • composition and/or formulation thereof with reference to the industrial use polymers, industrial use surfactants, descaling compounds and/or industrial use biocides refers to industrial use compositions and/or institutional use products and/or fabric and home care products and/or personal care products defined in more detail in paragraph [3059] of Reference RF1.
  • the converting step(s) to obtain the industrial use polymer, industrial use surfactant, descaling compound and/or industrial use biocide are defined in more detail in paragraph [3060] of Reference RF1.
  • the converting steps to obtain the industrial use composition or formulation of the industrial use polymer, industrial use surfactant, descaling compound and/or industrial use biocide are defined in more detail in paragraph [3061] of Reference RF1.
  • agrochemical composition typically relates to a composition comprising an agrochemically active ingredient and at least one agrochemical formulation auxiliary.
  • agrochemical compositions, active ingredients and auxiliaries are described in more detail in Reference RF1 , paragraph [4001],
  • the agrochemical composition may take the form of any customary formulation.
  • the agrochemical compositions are prepared in a known manner, e.g. described by Mollet and Grubemann, Formulation technology, Wiley VCH, Weinheim, 2001 ; or Knowles, New developments in crop protection product formulation, Agrow Reports DS243, T&F Informa, London, 2005.
  • the converting step(s) to obtain the agrochemically active ingredients and auxiliaries may be conducted in analogy to the production step(s) of their analogues that are based on petrochemicals or other precursors that are not gained by recycling processes.
  • active pharmaceutical ingredients and/or intermediates thereof comprises substances that provide pharmacological activity or other direct effect in the diagnosis, cure, mitigation, treatment, or prevention of disease, or to affect the structure or any function of the body. Intermediates thereof are isolated products that are generated during a multi-step route of synthesis of an active pharmaceutical ingredient.
  • pharmaceutical excipients comprises compounds or compound mixtures used in compositions for various pharmaceutical applications, which are not substantially pharmaceutically active on itself. Active pharmaceutical ingredients and/or intermediates thereof and pharmaceutical excipients are defined in more detail in paragraph [5001] of Reference RF1.
  • the converting step(s) to obtain the active pharmaceutical ingredients and/or intermediates thereof and pharmaceutical excipients may comprise one or more synthesis steps and can be performed by conventional synthesis and techniques well known to a person skilled in the art.
  • animal feed additives human food additives, dietary supplements, as used herein, comprises Vitamins, Pro-Vitamins and active metabolites thereof including intermediates and precursors, especially Vitamin A, B, E, D, K and esters thereof, like acetate, propionate, palmitate esters or alcohols thereof like retinol or salts thereof and any combinations thereof; Tetraterpenes, especially isoprenoids like carotenoids and xanthophylls including their intermediates and precursors as well as mixtures and derivates thereof, especially beta carotene, Canthaxan- thin, Citranaxanthin, Astaxanthin, Zeaxanthin, Lutein, Lycopene, Apo-carotenoids, and any combinations thereof; organic acids, especially formic acid, propionic acid and salts thereof, such as sodium, calcium or ammonium salts, and any combinations thereof, such as but not limited to mixtures of formic acid and sodium formiate, propionic acid and ammonium propionat
  • the converting step(s) to obtain the animal feed additives, human food additives, dietary supplements may comprise one or more synthesis steps and can be performed by conventional synthesis and techniques well known to a person skilled in the art.
  • aroma chemical and aroma composition as used herein, comprise a volatile organic substance with a molecular weight between 70-250 g/mol comprising a functional group with a carbon skeleton of C5-C16 carbon atoms comprising linear, branched, cyclic, for example with a ring size of C5-C18, bicyclic or tricyclic aliphatic chains and but not necessarily one or more unsaturated structural elements like double bonds, triple bonds, aromatics or heteroaromatics and preferably the one or more additional functional groups are selected from alcohol, ether, ester, ketone, aldehyde, acetal, carboxylic acid, nitrile, thiol, amine.
  • the aroma chemical is a terpene-based aroma chemical, for example selected from monoterpenes and monoterpenoids, sesquiterpenes and sesquiterpenoids, diterpenes, triterpenes or tetraterpenes.
  • Aroma chemicals can be combined with further aroma chemicals to give an aroma composition.
  • Aroma chemicals and aroma compositions are defined in more detail in paragraph [5003] of Reference RF1.
  • the converting step(s) to obtain the aroma chemical and aroma composition may comprise one or more synthesis steps and can be performed by conventional synthesis and techniques well known to a person skilled in the art.
  • aqueous polymer dispersion comprises aqueous composition(s) comprising dispersed polymer(s) and is defined in more detail in the section [6001] entitled “aqueous polymer dispersion” of Reference RF1.
  • the dispersed polymer(s) may be selected from acrylic emulsion polymer(s), styrene acrylic emulsion polymer(s), styrene butadiene dispersions), aqueous dispersion(s) comprising composite particles, acrylate alkyd hybrid dispersions), polyurethane(s) (including UV-curable polyurethanes) and polyurethane - poly(meth) acrylate hybrid polymer(s).
  • emulsion polymer comprises polymer(s) made by free-radical emulsion polymerization.
  • Aqueous polyurethane dispersion(s) are defined in more detail in the section [6002] entitled “Polyurethane dispersions” of Reference RF1.
  • UV-curable polyurethane(s) is/are defined in more detail in the section [6017] of Reference RF1.
  • Polyurethane - poly(meth)acrylate hybrid polymer(s) is/are defined in more detail in the section [6016] of Reference RF1.
  • polymeric dispersant comprises preferably polymer(s) comprising polyether side chain, in particular polycarboxylate ether polymer(s) and polycondensation produces) defined in more detail in paragraph [6020] entitled “Polymeric dispersant” of Reference RF1.
  • the converting (polymerization) step(s) to obtain the aqueous polymer dispersion(s) comprising emulsion polymer(s) is/are defined in more detail in the section [6003] entitled “Emulsion polymerization” of Reference RF1.
  • the converting (polymerization) step(s) to obtain the aqueous polyurethane dispersion(s) is/are defined in more detail in the section [6014] entitled “Process for the preparation of aqueous polyurethane dispersions” and section [6017] entitled “Aqueous UV-curable polyurethane dispersions, their preparation and use and compositions containing them” of Reference RF1.
  • composition(s) and uses of aqueous polymer dispersion(s) and of polymeric dispersant(s) are defined in more detail in the following sections of Reference RF1 : section [6004] entitled “Uses of aqueous polymer dispersions”, section [6005] entitled “Binders for architectural and construction coatings” section [6006] entitled “Binders for paper coating” section [6007] entitled “Binders for fiber bonding” section [6008] entitled “Adhesive polymers and adhesive compositions” section [6015] entitled “Aqueous polyurethane dispersions suitable for use in coating compositions” section [6016] entitled “Aqueous polyurethane - poly(meth)acrylate hybride polymer dispersions suitable for use in coating compositions” section [6017] entitled “Aqueous UV-curable polyurethane dispersions, their preparation and use and compositions containing them” section [6018] entitled “Inorganic binder compositions comprising polymeric dispersants and their use”
  • UV-crosslinkable poly(meth)acrylate(s) and its/their uses are defined in more detail in section [6009] entitled “UV-crosslinkable poly(meth)acrylates for use in UV-curable solvent-free hotmelt adhesives and their use for making pressure-sensitive self-adhesive articles” of Reference RF1.
  • Polyisocyanate(s), composition(s) comprising them and their uses are defined in more detail in section [6010] entitled “Polyisocyanates” of Reference RF1.
  • Hyperbranched polyester polyol(s) and its/their uses are defined in more detail in section [6011] entitled “Organic solvent based hyperbranched polyester polyols suitable for use in coating compositions” of Reference RF1.
  • the converting step(s) to obtain the hyperbranched polyester polyols is/are defined in more detail in the section [6012] entitled “Preparation of organic solvent based hyperbranched polyester polyols” of Reference RF1.
  • Coating composition(s) comprising hyperbranched polyester polyol(s), polyisocyanate(s) and additive(s) and substrate(s) coated therewith are defined in more detail in section [6013] entitled “Organic solvent based two component coating compositions comprising hyperbranched polyester polyols and polyisocyanates” of Reference RF1.
  • Unsaturated polyester polyol(s), solvent-based coating composition(s) comprising said unsaturated polyester polyol(s) and substrate(s) for coating with said coating composition(s) are defined in more detail in section [6018] entitled “Organic solvent based coating composition comprising unsaturated polyester polyols” of Reference RF1.
  • 100% curable coating composition(s) is/are defined in more detail in section [6019] of Reference RF1.
  • cosmetic surfactant comprises non-ionic, anionic, cationic and amphoteric surfactants and is defined in more detail in paragraph [7002] of Reference RF1.
  • emollient refers to a chemical compound used for protecting, moisturizing, and/or lubricating the skin and is defined in more detail in paragraph [7003] of Reference RF1.
  • wax as used herein, comprises pearlizers and opacifiers and is defined in more detail in paragraph [7004] of Reference RF1.
  • cosmetic polymer as used herein, comprises any polymer that can be used as an ingredient in a cosmetic formulation and is defined in more detail in paragraph [7005] of Reference RF1.
  • UV filter refers to a chemical compound that blocks or absorbs ultraviolet light and is defined in more detail in paragraph [7006] of Reference RF1.
  • Several sources disclose cosmetically acceptable ingredients. E. g. the database Cosing on the internet pages of the European Commission discloses cosmetic ingredients and the International Cosmetic Ingredient Dictionary and Handbook, edited by the Personal Care Products Council (PCPC), discloses cosmetic ingredients.
  • composition and/or formulation thereof” with reference to the cosmetic surfactant, emollient, wax, cosmetic polymer, UV filter and/or further cosmetic ingredient refers to personal care and/or cosmetic compositions or formulations defined in more detail in paragraph [7007] of Reference RF1.
  • the converting step(s) to obtain the cosmetic surfactant, emollient, wax, cosmetic polymer, UV filter or further cosmetic ingredient is/are defined in more detail in paragraph [7008] of Reference RF1.
  • a process for recycling a polymeric material W comprising
  • (111.4) passing the mixture removed from C1 according to (iii.3) into a milling device MD and removing the obtained mixture from MD; wherein (iii) further comprises recirculating the mixture removed from MD according to (iii.4) into C1 by introducing it into C1 in step (iii.2); wherein the recirculating is performed n times, with n 2 or more;
  • the shredding device S(W0) used in (i.2) is one or more of a shredder, a guillotine and a cutting mill, preferably a shredder, a guillotine or a cutting mill, more preferably a shredder, the shredder being more preferably a doubleshaft shredder or a four-shaft shredder.
  • sorting according to (i.3) is optical sorting, preferably the optical sorting is hyperspectral or infrared sorting, more preferably near-infrared sorting or mid-infrared sorting, more preferably near-infrared sorting.
  • polymer P is cellulose, polyethylene terephthalate (PET) or polyamide, preferably cellulose or PET, more preferably cellulose.
  • polymeric textile fibers are one or more of cellulose-based material textile fibers, polyethylene terephthalate (PET) textile fibers and polyamide textile fibers, preferably cellulose-based material textile fibers, polyethylene terephthalate (PET) textile fibers or polyamide textile fibers, more preferably cellulose-based material textile fibers.
  • PET polyethylene terephthalate
  • polyamide textile fibers preferably cellulose-based material textile fibers, polyethylene terephthalate (PET) textile fibers or polyamide textile fibers, more preferably cellulose-based material textile fibers.
  • shredding device S(W) used in (ii) is a shredder, a hammer mill, a guillotine or a cutting mill, preferably a hammer mill or a cutting mill.
  • the enzyme for degrading P is a cellulase, a PETase, a protease, an amidase and/or a cutinase, preferably the enzyme is a cellulase or a PETase, more preferably a cellulase.
  • a batch B(i) is introduced into the reactor Rll’ comprised in Rll and brought in contact with the enzyme E(i) for degrading the polymer P as well as with M2(i-1) comprised in Rll’, obtaining a mixture MB(i) in Rll';
  • the depolymerization conditions comprises a depolymerization temperature in the range of from 15 to 80 °C.
  • (iv) further comprises introducing water into Rll.
  • the process of embodiment 22, wherein the pH of the liquid phase of the mixture comprises in Rll is in the range of from 3 to 7, preferably in the range of from 4 to 6. 24.
  • the separation unit Sil is one or more of a centrifuge, a cyclone, a membrane filter, a screen or a decanter, more preferably one or more of a centrifuge, a cyclone and a decanter, more preferably a centrifuge.
  • reactor unit Rll comprises a reactor Rll’ and a milling device MD’, preferably one reactor Rll’ and one milling device MD’.
  • Sil preferably being one or more of a centrifuge, a cyclone, a membrane filter, a screen or a decanter, more preferably one or more of a centrifuge, a cyclone and a decanter, more preferably a centrifuge.
  • Process preferably according to any one of embodiments 1 to 27, comprising the step: converting the pieces p10 of polymeric materials containing a polymer different to the polymer P obtained in (i.3) obtainable by or obtained by the process according to embodiment 3 or a chemical material obtainable by or obtained by the process according to any one of embodiments 1 to 27 to obtain a product PRF1.
  • Process comprising the step(s): using the recycling unit according to any one of embodiments 28 to 30 to obtain pieces p10 of polymeric materials containing a polymer different to the polymer P; and preferably converting the pieces p10 of polymeric materials containing a polymer different to the polymer P to obtain a product PRF1.
  • the product PRF1 is selected from: i) building block or monomer; or ii) polymer, preferably polymer A, polymer composition, preferably polymer composition A, or polymer product, preferably polymer product A; or iii) industrial use polymer, industrial use surfactant, descaling compound, industrial use biocide, industrial use solvent, industrial use dispersant, composition thereof or formulation thereof; or iv) agrochemical composition, agrochemical formulation auxiliary or agrochemically active ingredient; or v) active pharmaceutical ingredient or intermediate thereof, pharmaceutical excipient, animal feed additive, human food additive, dietary supplements, aroma chemical or aroma composition; or vi) aqueous polymer dispersion, preferably polyurethane or polyurethane - poly(meth) acrylate hybrid polymer dispersion, emulsion, binder for paper and fiber coatings, UV-curable acrylic polymer for hot melts and coatings polyisocyanates, hyperbranched polyester polyol, polymeric
  • the content of the polymer different to the polymer P or the chemical material or the pieces p10 of polymeric materials containing a polymer different to the polymer P in the product PRF1 is 1 weight-% or more, preferably 2 weight-% or more, more preferably 5 weight-% or more, more preferably 15 weight-% or more, more preferably 30 weight-% or more, more preferably 40 weight-% or more, more preferably 60 weight-% or more, more preferably 80 weight-% or more, more preferably 90 weight-% or more, more preferably 95 weight-% or more; and/or wherein the content of the polymer different to the polymer P or the chemical material or the pieces p10 of polymeric materials containing a polymer different to the polymer P in the product PRF1 is 100 weight-% or less, preferably 95 weight-% or less, more preferably 90 weight-% or less, more preferably 50 weight-% or less, more preferably 25 weight- % or less, more preferably
  • the textile waste material is solid waste material.
  • textile waste material refers to waste materials from clothing, carpet, furniture, fishing nets, woven textiles and tissues.
  • textile fibers encompasses fibers, yarns, filaments, threads and fabrics.
  • cellulose-based material refers to cotton, viscose, hemp, linen and/or other natural fibers.
  • cellulose-based material textile fibers means fibers made of cellulose-based material, such as cotton, viscose etc.
  • polyamide 6 textile fibers means textile fibers made of polyamide 6.
  • PET textile fibers means textile fibers made of PET.
  • the term “Raging” refers to reactive aging as known in the art.
  • X is a chemical element and A, B and C are concrete elements such as Li, Na, and K, or X is a temperature and A, B and C are concrete temperatures such as 10 °C, 20 °C, and 30 °C.
  • X is one or more of A and B” disclosing that X is either A, or B, or A and B, or to more specific realizations of said feature, e.g. “X is one or more of A, B, C and D”, disclosing that X is either A, or B, or C, or D, or A and B, or A and C, or A and D, or B and C, or B and D, or C and D, or A and B and C, or A and B and D, or B and C and D, or A and B and C and D, or A and B and C and D, or A and B and C and D, or A and B and C and D, or A and B and C and D.
  • Figure 1 shows the glucose yield achieved under different conditions to compare the inventive process performances with a process of the prior art.
  • the process comprises the mixing + milling steps of a mixture comprising cellulose and water, wherein said mixture is recirculating as in step (iii) of the process of the present invention between about 100 and 400 times, corresponding to a duration of from 15 min to 45 min.
  • the samples were brought into a lab and the enzymes were added. That means no additional milling energy was put into the samples during the enzymatic degradation after milling, they were only stirred mildly by using a magnetic stirrer.
  • the time on the x-axis indicates the increase in glucose produced by the enzymes in proportion to the maximum cellulose available for degradation.
  • Figure 2 shows the glucose yield achieved under different conditions to compare the inventive process performance with processes not according to the invention.
  • the process comprises the mixing + milling steps of a mixture comprising cellulose and water, wherein said mixture is recirculating as in step (iii) of the process of the present invention about 100 times, corresponding to a duration of 14 min, the pre-milling is performed at a rotor-stator gap width of 700 pm. Enzymes are added after pre-milling. The other curves show the yield achieved without pre-milling as the enzyme was added from the beginning and at varying RAging cycles (either 2 min milling followed by 28 min mixing or 30s milling followed by 30 Min mixing) and varying gap width.
  • Figure 3 shows the glucose yield achieved under different conditions to compare the inventive process performance with processes not according to the invention.
  • a pre-milling of 15 min was performed in a milling device, namely a wet rotor mill at a rotor-stator gap width of 700 pm. Enzymes were added after pre-milling. Then the RAging cycle of 2 min milling and 28 min mixing is made for 6 h.
  • the material was pre-milled for 15 minutes at a rotor-stator at a gap width of 700 pm. Enzymes were added after pre-milling. Then the suspension was gently stirred using a magnetic stirrer for 6 h.
  • Figure 4 is a schematic representation of a recycling unit used for the process according to embodiments of the invention.
  • the production unit comprises a shredding device S(W) for shredding pieces p1 of the polymeric material W comprising the polymer P, a container C1 , a milling device MD and a reactor unit Rll.
  • the pieces p1 of a polymeric material W (p1(W)) comprising a polymer P are introduced into the shredding device S(W) and shred to obtain the pieces p2 comprising the polymer P.
  • the pieces p2 comprising the polymer P are introduced together with water into the container C1. What is introduced into the container C1 is brought in contact and the obtained mixture is removed from C1 and introduced into the milling device MD for milling.
  • FIG. 5 is a schematic representation of a recycling unit used for the process according to embodiments of the invention.
  • the production unit comprises a shredding device S(W) for shredding pieces p1 of the polymeric material W comprising the polymer P, a container C1, a milling device MD and a reactor unit Rll comprising m reactors R1 , R2, Rllm and m-1 milling devices MDO, MD1, MDm- 1.
  • the pieces p1 of a polymeric material W (p1 (W)) comprising a polymer P are introduced into the shredding device S(W) and shred to obtain the pieces p2 comprising the polymer P.
  • the pieces p2 comprising the polymer P are introduced together with water into the container C1.
  • the respective mixture When recirculation is done and the mixture is back in RU1 , the respective mixture is transferred from RU1 to RU2. The mixture is then passed from RU2 to MD1 and recirculated x times in RU2. When the recirculation is done and the mixture is back in RU2, the respective mixture is transferred from RU2 to the next reactor. When the recirculation is done in the last milling device MDm-1 and the mixture is back in Rllm-1 , the respective mixture is transferred from Rllm-1 to Rllm, obtaining the mixture M2 comprising one or more monomers of the polymer P which is removed from Rllm and Rll.
  • Figure 6 is a schematic representation of a recycling unit used for the process according to embodiments of the invention.
  • the production unit comprises a shredding device S(W) for shredding pieces p1 of the polymeric material W comprising the polymer P, a container C1 , a milling device MD and a reactor unit Rll.
  • the pieces p1 of a polymeric material W (p1(W)) comprising a polymer P are introduced into the shredding device S(W) and shred to obtain the pieces p2 comprising the polymer P.
  • the pieces p2 comprising the polymer P are introduced together with water into the container C1. What is introduced into the container C1 is brought in contact and the obtained mixture is removed from C1 and introduced into the milling device MD for milling.
  • the mixture M1 comprising milled pieces p3 and water finally removed from MD and passed through a separation unit Sil for removing some water.
  • the obtained mixture M1 depleted in water compared to before its passage through Sil is introduced together with an enzyme for degrading the polymer P into the reactor Rll.
  • This step comprises introducing M1 into Rll’ with the enzyme, bringing in contact M1 and the enzyme, passing the obtained mixture in MD’ and recirculating x times the mixture to the reactor Rll’, with x being preferably of from 1 to 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

La présente invention concerne un procédé de recyclage d'un matériau polymère W comprenant un polymère P, ledit procédé étant un procédé de recyclage mécanique et enzymatique ; ainsi qu'une unité de recyclage pour mettre en œuvre ledit procédé.
PCT/EP2024/079191 2023-10-17 2024-10-16 Procédé de recyclage d'un matériau polymère w comprenant un polymère p Pending WO2025083050A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23204160 2023-10-17
EP23204160.8 2023-10-17

Publications (1)

Publication Number Publication Date
WO2025083050A1 true WO2025083050A1 (fr) 2025-04-24

Family

ID=88417072

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/079191 Pending WO2025083050A1 (fr) 2023-10-17 2024-10-16 Procédé de recyclage d'un matériau polymère w comprenant un polymère p

Country Status (1)

Country Link
WO (1) WO2025083050A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390456B (de) 1987-11-05 1990-05-10 Andritz Ag Maschf Refiner zur zerkleinerung bzw. zum mahlen von faserstoffmaterial, vorzugsweise hackschnitzeln
US20050242221A1 (en) 2002-07-26 2005-11-03 Fabio Rota Two-shaft industrial shredder
DE102006054770A1 (de) * 2006-11-17 2008-05-21 Cvp Clean Value Plastics Gmbh Verfahren für das Recycling von Abfallkunststoff, insbesondere Mischkunststoff
US20150273479A1 (en) 2014-03-26 2015-10-01 Granutech-Saturn Systems Corp. Industrial Shredder
US10260081B2 (en) * 2013-03-15 2019-04-16 Edeniq, Inc. Cellulosic enzyme recycling from separation of saccharified biomass
CN216094089U (zh) 2021-08-06 2022-03-22 东莞市绿丰环保机械有限公司 一种四轴撕碎机
WO2023280814A1 (fr) 2021-07-08 2023-01-12 Voith Patent Gmbh Dispositif de broyage
US20230158511A1 (en) 2020-03-27 2023-05-25 Bühler AG Agitator ball mill

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390456B (de) 1987-11-05 1990-05-10 Andritz Ag Maschf Refiner zur zerkleinerung bzw. zum mahlen von faserstoffmaterial, vorzugsweise hackschnitzeln
US20050242221A1 (en) 2002-07-26 2005-11-03 Fabio Rota Two-shaft industrial shredder
DE102006054770A1 (de) * 2006-11-17 2008-05-21 Cvp Clean Value Plastics Gmbh Verfahren für das Recycling von Abfallkunststoff, insbesondere Mischkunststoff
US10260081B2 (en) * 2013-03-15 2019-04-16 Edeniq, Inc. Cellulosic enzyme recycling from separation of saccharified biomass
US20150273479A1 (en) 2014-03-26 2015-10-01 Granutech-Saturn Systems Corp. Industrial Shredder
US20230158511A1 (en) 2020-03-27 2023-05-25 Bühler AG Agitator ball mill
WO2023280814A1 (fr) 2021-07-08 2023-01-12 Voith Patent Gmbh Dispositif de broyage
CN216094089U (zh) 2021-08-06 2022-03-22 东莞市绿丰环保机械有限公司 一种四轴撕碎机

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
"Closing the cycle: Enzymatic recovery of high purity glucose and polyester from textile blends", RESOURCES, CONSERVATION & RECYCLING, vol. 188, 2023, pages 106701
FABIEN HAMMERER ET AL.: "Solvent-free Enzyme activity: Quick, High-Yielding Mechanoenzymatic Hydrolysis of Cellulose into Glucose", ANGEW. CHEM. INT. ED., vol. 57, 2018, pages 2621 - 2624, XP055818958, DOI: 10.1002/anie.201711643
KNOWLES: "Agrow Reports DS243", 2005, T&F INFORMA, article "New developments in crop protection product formulation"
MOLLETGRUBEMANN: "Formulation technology", 2001, WILEY VCH
PRIOR ART DISCLOSURE, 12 February 2024 (2024-02-12), ISSN: 2198-4786

Similar Documents

Publication Publication Date Title
JP6649249B2 (ja) バイオマスの加工
Kaabel et al. Solid‐state enzymatic hydrolysis of mixed PET/cotton textiles
US10876178B2 (en) Lignocellulosic conversion processes and products
Yu et al. Lignin nanoparticles with high phenolic content as efficient antioxidant and sun-blocker for food and cosmetics
JP2020063449A (ja) ポリマーへのヒドロキシ−カルボン酸の加工処理
UA117749C2 (uk) Обробка біомаси
EP3092335B1 (fr) Procédé de récupération de polyester
WO2025083050A1 (fr) Procédé de recyclage d'un matériau polymère w comprenant un polymère p
IL313329A (en) Pretreatment methods for cotton textile waste fabric
CN107206289A (zh) 用于处理木质纤维素材料的方法
WO2025233329A1 (fr) Récupération de fibres de verre à partir d'un mélange de solvolyse obtenu par hydrolyse alcaline de plastiques d'ingénierie de poly-amide (pa66)
WO2025196193A1 (fr) Processus hautement intégré de préparation de polyamide 6 à partir de déchets contenant du polyamide 6
WO2025215063A1 (fr) Procédé économe en solvant pour la préparation d'hydrosulfite de sodium
WO2025233341A1 (fr) Séparation de mélanges de solvolyse du plastique à partir de composants de charge
WO2025233334A1 (fr) Récupération de fibres de verre à partir d'un mélange de solvolyse obtenu par hydrolyse neutre de polyhexaméthylène adipamide
WO2025196041A1 (fr) Recyclage de polyuréthane
WO2025233331A1 (fr) Procédé pour isoler des fibres de verre, de l'acide adipique et de l'hexaméthylène diamine à partir de pa66
WO2025257042A1 (fr) Procédé de recyclage
NL2034965B1 (en) A process suitable for recycling textile waste
WO2025083053A1 (fr) Procédé de recyclage d'un matériau polymère w comprenant un polymère p
NL2034966B1 (en) A process suitable for recycling a mixed polymer waste material
WO2025257407A1 (fr) Procédé de production d'oléfines par vapocraquage
WO2025238085A1 (fr) Processus de séparation de produits à point d'ébullition élevé à partir de mélanges de dépolymérisation de polyamide 6
WO2025238077A1 (fr) Procédé de séparation de produits à point d'ébullition élevé à partir de mélanges de dépolymérisation de polyamide 6
WO2025257256A1 (fr) Procédé et dispositif de production de butanediol par hydrogénation de butynediol

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24787534

Country of ref document: EP

Kind code of ref document: A1