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WO2018071375A1 - Support d'indication d'huile poreux fritté et ses applications - Google Patents

Support d'indication d'huile poreux fritté et ses applications Download PDF

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Publication number
WO2018071375A1
WO2018071375A1 PCT/US2017/055865 US2017055865W WO2018071375A1 WO 2018071375 A1 WO2018071375 A1 WO 2018071375A1 US 2017055865 W US2017055865 W US 2017055865W WO 2018071375 A1 WO2018071375 A1 WO 2018071375A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
water
sintered porous
composition
media
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.)
Ceased
Application number
PCT/US2017/055865
Other languages
English (en)
Inventor
Guoqiang Mao
Edward Carl GIORDANO
William D. NIBLOCK
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.)
Porex Technologies Corp
Original Assignee
Porex Technologies Corp
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 Porex Technologies Corp filed Critical Porex Technologies Corp
Publication of WO2018071375A1 publication Critical patent/WO2018071375A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/14—Diatomaceous earth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1638—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
    • B01D39/1653—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin
    • B01D39/1661—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin sintered or bonded
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/165—Natural alumino-silicates, e.g. zeolites
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28026—Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3007—Moulding, shaping or extruding
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G01N33/1826—Organic contamination in water
    • G01N33/1833—Oil in water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1216—Pore size
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/46—Materials comprising a mixture of inorganic and organic materials
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/49—Materials comprising an indicator, e.g. colour indicator, pH-indicator
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/32—Materials not provided for elsewhere for absorbing liquids to remove pollution, e.g. oil, gasoline, fat

Definitions

  • compositions comprising sintered porous media comprising dyes particles in combination with plastic particles or elastomeric particles. These compositions are useful in detecting oil or organic solvents in air or water by changing color when the oil or organic solvent contacts the sintered porous media and dissolves the dye particles. Accordingly, these compositions provide a visual indication for oil or other organic solvents in the water or air. Pure water and pure air will not provide a visual detectable signal.
  • the sintered porous media of the present invention can be used to provide a visual color indication when a device leaks an oil based liquid.
  • the sintered porous media of the present invention can change color or hue when it contacts oils or organic solvents.
  • the sintered porous media of the present invention are hydrophobic.
  • Figure 3 Examples of different types of sintered porous media and examples of molded 3D devices.
  • FIG. 4 A compressed air line filter shown in the figure could contain the sintered porous media of the present invention.
  • Figure 5 Sintered porous media for use in an oil pump muffler.
  • Sintered porous media can be used in an oil water separator for an air compresser shown in the figure.
  • FIG. 7 Example of sintered porous media for use in an oil water separator for an air compressor. Two views are presented of a disposable cartridge where the porous oil- indicating element is positioned at the downstream end of the oil water separator's post-filter. This provides the function of alerting the user that the oil-absorptive media has been fully consumed and requires replacement.
  • the present invention provides compositions comprising sintered porous media comprising dye particles in combination with plastic particles or elastomeric particles. These compositions are useful in detecting oil or organic solvents in air or water by changing color when the oil or organic solvent contacts the sintered porous media and dissolves the dye particles. Accordingly, these compositions provide a visual indication for oil or other organic solvents in the water or air.
  • sintered porous media and sintered porous matrix are used interchangeably in this application.
  • the sintered porous media of the present invention comprise a solvent dye in combination with a polymeric plastic or an elastomer. Solvent dye particles and polymeric plastic or elastomer particles are combined and sintered to form the sintered porous media.
  • the solvent dyes are organic colorants that have higher solubility in oils and organic solvents than in water.
  • the solvent dyes used in the present invention have solubilities in water of less than 1 gram (gm)/100 ml water, less than 0.1 gm/100 ml water, or less than 0.01 gm/100 ml water at room temperature.
  • the sintered porous media comprise more than one solvent dye.
  • the different solvent dyes may have different oil solubilities.
  • the sintered porous media have an average pore size from about about 0.1 microns to about 200 microns, from about 0.2 microns to about 200 microns, from about 0.5 microns to about 100 microns, from about 1 micron to about 80 microns, or from about 5 microns to about 50 microns.
  • the sintered porous media have an average porosity of about 20% to about 70%, from about 25% to about 60 %, or from about 30% to about 50 %.
  • the sintered hydrophobic porous media of the present invention have an average water intrusion pressure greater than about 2 inches of water, greater than about 5 inches of water, greater than about 10 inches of water, greater than about 15 inches of water or greater than about 27 inches of water.
  • Solvent dyes in the present invention are at concentrations of less than 1 %, less than 0.1 %, less than 0.05%, less than 0.02% or less than 0.01 %, but more than 0.0001 % (all in wt.% of the sintered hydrophobic porous media).
  • Solvent dyes in the present invention include, but are not limited to, solvent red 1 , solvent red 3, solvent red 18, solvent red 24, solvent red 26, solvent red 164, solvent yellow 14, solvent yellow 16, solvent yellow 29, solvent yellow 56, solvent yellow 124, solvent blue 35, solvent blue 70, solvent black 3, and solvent black 7 or a mixture thereof.
  • the dyes may be also fluorescent dyes, including but not limited to, acridine dyes, cyanine dyes, fluorine dyes, oxazine dyes, phenanthridine dyes and rhodamine dyes.
  • Oils that may be detected with the sintered porous media of the present invention include, but are not be limited to, hydrocarbon oils; polyalphaolefin oils (PAO); polyinternal olefin oil (PIO); mineral oils; silicone oils, naphthenic oils, polyalkylene glycols (PAG) oils, such as polypropylene glycol (PPG) oils; phosphate ester oils; multiple alkylated cyclopentanes (MAC) oils, and a mixture thereof. Oils that may be detected with the sintered porous media also include fuels, such as gasoline, diesel, and kerosene.
  • Organic solvents that may be detected with the sintered porous media are liquid organic solvents that may or may not be miscible with water.
  • the water miscible organic solvents include, but are not limited to, alcohols, such as, methanol, ethanol, propanol, isopropanol, butanol; aldehydes; ketones; tetrahydrofuran (THF), dimethylsulfoxide (DMSO), dimethylformamide (DMF), N-Methyl-2-pyrrolidone (NMP), cyclohexanone, etc.
  • the sintered porous media of the present invention may change from a light hue to a darker hue with the same color, such as from light blue to dark blue, from light red to dark red, from light purple to dark purple, from light yellow to dark yellow, etc. upon contact with oils or organic solvents.
  • the sintered porous media of the present invention change from one color to another color.
  • the sintered porous media comprise at least two different solvent dyes with different solubilities in oil or organic solvents.
  • the different solubilities of the solvent dyes cause the change of the color appearance of sintered porous media.
  • the sintered porous media may further comprise one or more oil absorptive materials.
  • oil absorptive materials include, but are not limited to, anthracite, laumontite, organoclays, or modified zeolites from TIGG LLC, (1 Willow Avenue, Oakdale, PA 15071), synthetic copolymer of 1-octene and isodecyl acrylate copolymer, acrylate polymers, styrene-ethylene-butylene based copolymers, Envio-bond® 403, TOTALSORB®, TOTALSORB® Plus, and OrganoLock N-65 from M2 Polymer Technologies, Inc. (West Dundee, Illinois, USA).
  • the sintered porous media can have different physical shapes, such as tube, sheet, rod, disk and molded three-dimensional structures.
  • different regions of a sintered porous media may have different solvent dyes that produce different colors upon contact with an oil or organic solvent.
  • one region of a sintered porous media may have solvent dyes and another region may not have a solvent dye.
  • a sintered porous media may have a layered structure, wherein one layer comprises one or more solvent dyes and another layer does not comprise a solvent dye.
  • the region without a solvent dye is white and region with a solvent dye is colored.
  • a sintered porous media may have a region with one or more solvent dyes for oil detection and another region with different solvent dyes for organic solvent detection.
  • Hydrophobic sintered porous plastic media permit only the low surface energy oil to wick into the porous media but do not permit high surface energy water to enter the pore structure of the sintered porous plastic media.
  • the hydrophobic sintered porous media changes its light refractivity when its pores contain oil, organic solvents or other low surface tension liquids.
  • the dyes in the sintered porous media have very low water solubility and dissolve in the oils or organic solvents that enter the pores.
  • the dissolved dyes provide a colored visual signal on the sintered porous media.
  • Sintered porous media of the present invention are made by co-sintering polymeric particles with solvent dye particles.
  • the sintering conditions are disclosed in US 8, 187,534 and US 8, 141 ,717 for making sintered porous media.
  • the total amount of solvent dyes is less than 1 %, less than 0.1%, less than 0.05%, less than 0.02% or less than 0.01%, but more than 0.0001% (all in wt.% of the sintered porous media).
  • sintered porous media of the present invention are made by solution coating of a sintered porous polymeric media with a solution containing solvent dyes.
  • the solvent dye solution should be less than 1%, less than 0.1%, less than 0.05%, less than 0.02% or less than 0.01 %, but more than 0.0001 %.
  • the solvents are chosen based on dye solubility in the solvent as known to one of ordinary skill in the art.
  • the common solvents are acetone, isopropanol and ethyl acetate.
  • sintered porous media are dipped in the solution containing 0.1 % of solvent dye solution and then dried at room temperature.
  • sintered porous media are made by printing a sintered porous polymeric media with a solution containing solvent dyes.
  • printing is accomplished through ink jet printing.
  • a solution containing solvent dyes is printed on the sintered porous media and the solvent dyes are absorbed into the sintered porous media.
  • the solvent dye solution should be less than 1%, less than 0.1%, less than 0.05%, less than 0.02% or less than 0.01%, but more than 0.0001% (all in wt.% of the sintered porous media).
  • the solvents are chosen based on dye solubility in the solvent as known to one of ordinary skill in the art.
  • the common solvents are acetone, isopropanol and ethyl acetate.
  • an ink jet is used to spray dye solution onto a specific location of the sintered porous media and then the sintered porous media is dried at room temperature.
  • Sintered porous media can be a disposable test strip for testing oil in the water. This is a sintered sheet for a product with similar thickness to the current oil testing strip 907- 60 made by MACHEREY-NAGEL Inc. (2850 Emerick Boulevard. Bethlehem, PA 18020).
  • Sintered porous media in the present invention can be used as an oil indicator in a device that monitors oil content in water, such as an oil water separation device.
  • a device that monitors oil content in water such as an oil water separation device.
  • all water must be monitored for oil content before discharge.
  • waste water treatment secondary containment, an oil production facility, an oil recovery and/or recycling facility, air compressor condensation, surface water run-off, boiler condensation return, cooling water and produced water discharge, and marine bilge water.
  • the present invention does not replace current methods, but provides a complementary visual indication of the presence of oil.
  • One specific use of the sintered porous media is as an oil indicator for a compressor condensation drainage tank and oil water separator.
  • the sintered porous media can also be used as an oil indicator for a vacuum line or a compressed air line.
  • Oil vapor or aerosols are commonly produced in the compressor. Oil aerosols in the air line generally indicate there is leak in the pump system. Oil in the compressed air affects compressed air function as a cleaning tool and needs to be removed.
  • Compressed air lines usually have a pre-filter (made from sintered porous plastic or fiber), a coalescing filter, a dryer (option) and an after filter.
  • the sintered porous media of the present invention can be used as pre-filter and as an after filter to monitor the oil from the pump (pre- filter) and the effectiveness of the coalescing filter (after filter).
  • the sintered porous media of the present invention can be used as a muffler for a vacuum pump to indicate the end of functional life of the muffler and that service is needed due to excess generation of oil aerosol.
  • the sintered porous media can be used as an absorbent and color indicator for a device containing an oil based ingredient, for example as a condensation and leakage indicator for the e-liquid in an e-cigarette.
  • Sintered porous oil color indicating media comprising oil absorbent and solvent dyes
  • Sintered porous oil color indicating media comprise oil absorbent and solvent dyes
  • An oil testing strip 907-60 made by MACHEREY-NAGEL Inc., blue colored sintered porous oil indicating media strip (see example 1) and purple colored sintered porous oil indicating media strip (see example 2) were used.
  • the strips were dipped into a water solution containing 100 ppm polypropylene glycol-based lubricating oil for 2 seconds. The strips were removed from the solution and the oil mark was observed. Oil marks were visible on the sintered porous oil indicating media, but not on the oil testing strip 907-60 made by MACHEREY-NAGEL Inc.
  • Sintered porous oil indicating media had better sensitivity for detecting oil in water than the currently available commercial product.
  • FIG. 2 shows four different sintered oil indicating media after they contacted the air stream containing oil aerosol. Shown from left to the right in Figure 2 are orange colored sintered oil indicating media (Example 3), purple colored sintered porous oil indicating media (Example 2), blue colored sintered porous oil indicating media (Example 1) and purple colored sintered oil indicating media (Example 4). Although color cannot be shown in the images, indication is evidenced to the user by a darker color and line gradation on the strip. The area where the color change takes place can be seen in the images where the area and line become darker. The sintered porous oil indicating media did not show noticeable color change in the air streams that did not contain oil aerosol.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

La présente invention concerne des compositions comprenant des supports poreux frittés comportant des particules de colorant en combinaison avec des particules en plastique ou des particules élastomères. Ces compositions sont utiles pour détecter de l'huile ou des solvants organiques dans de l'air ou de l'eau en changeant de couleur lorsque l'huile ou le solvant organique entre en contact avec le support poreux fritté et dissout les particules de colorant.
PCT/US2017/055865 2016-10-11 2017-10-10 Support d'indication d'huile poreux fritté et ses applications Ceased WO2018071375A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662406470P 2016-10-11 2016-10-11
US62/406,470 2016-10-11

Publications (1)

Publication Number Publication Date
WO2018071375A1 true WO2018071375A1 (fr) 2018-04-19

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Application Number Title Priority Date Filing Date
PCT/US2017/055865 Ceased WO2018071375A1 (fr) 2016-10-11 2017-10-10 Support d'indication d'huile poreux fritté et ses applications

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11192997B2 (en) 2014-03-07 2021-12-07 Ticona Llc Sintered polymeric particles for porous structures

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080149571A1 (en) * 2002-12-12 2008-06-26 Robert Zeller Porous sintered composite materials
US20080199363A1 (en) * 2007-02-12 2008-08-21 Guoqiang Mao Porous barrier media comprising color change indicators
US8141717B2 (en) 2006-08-18 2012-03-27 Porex Corporation Sintered polymeric materials and applications thereof
US20120318139A1 (en) * 2011-06-15 2012-12-20 Porex Corporation Sintered Porous Plastic Liquid Barrier Media and Applications Thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080149571A1 (en) * 2002-12-12 2008-06-26 Robert Zeller Porous sintered composite materials
US8141717B2 (en) 2006-08-18 2012-03-27 Porex Corporation Sintered polymeric materials and applications thereof
US20080199363A1 (en) * 2007-02-12 2008-08-21 Guoqiang Mao Porous barrier media comprising color change indicators
US8187534B2 (en) 2007-02-12 2012-05-29 Porex Corporation Porous barrier media comprising color change indicators
US20120318139A1 (en) * 2011-06-15 2012-12-20 Porex Corporation Sintered Porous Plastic Liquid Barrier Media and Applications Thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11192997B2 (en) 2014-03-07 2021-12-07 Ticona Llc Sintered polymeric particles for porous structures
US11879047B2 (en) 2014-03-07 2024-01-23 Ticona Llc Sintered polymeric particles for porous structures

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