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MY128311A - Improved polyethylene terephthalate decontamination - Google Patents

Improved polyethylene terephthalate decontamination

Info

Publication number
MY128311A
MY128311A MYPI9500915A MY128311A MY 128311 A MY128311 A MY 128311A MY PI9500915 A MYPI9500915 A MY PI9500915A MY 128311 A MY128311 A MY 128311A
Authority
MY
Malaysia
Prior art keywords
pet
ethanediol
bht
predetermined period
short chain
Prior art date
Application number
Inventor
Simon Michael West
Original Assignee
Petrecycle Pty Ltd
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 Petrecycle Pty Ltd filed Critical Petrecycle Pty Ltd
Publication of MY128311A publication Critical patent/MY128311A/en

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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/88—Post-polymerisation treatment
    • C08G63/90—Purification; Drying
    • 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
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
    • 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

Landscapes

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

Abstract

A PROCESS FOR REMOVING CONTAMINANTS FROM POLYETHYLENE TEREPHTHALATE ('PET") COMPONENTS BY DEPOLYMERISING PET INCLUDING TRANSESTERIFYING MATERIAL CONTAINING PET BY REACTING AN ALKANEDIOL OR ALKANEDIOLS AT A TEMPERATURE BELOW THE BOILING POINT OF ETHANEDIOL WITH THE MATERIAL FOR A PREDETERMINED PERIOD OF TIME TO FORM A MIXTURE CONTAINING EMBRITTLED PET; CRUSHING THE MIXTURE AND SEPARATING UNCRUSHED MATERIAL FROM THE CRUSHED MATERIAL WHICH CONTAINS PET; TRANSESTERIFYING THE CRUSHED PET BY REACTING AN ALKANEDIOL OR ALKANEDIOLS AT A TEMPERATURE BETWEEN AT OR ABOUT THE BOILING POINT ETHANEDIOL AND 240 DEGREES CELSIUS WITH THE RECOVERED PET FOR A PREDETERMINED PERIOD OF TIME TO FORM A SOLUTION CONTAINING SOLUBLE SHORT CHAIN PET POLYMERS AND/OR BIS (HYDROXY ETHYL) TEREPHTHALATE ESTER ("BHT"); RECOVERING SHORT CHAIN PET POLYMERS AND/OR BHT AND ETHANEDIOL; AND HYDROLYSING THE RECOVERED SHORT CHAIN PET POLYMERS AND/OR BHT AT AN ELEVATED PRESSURE AND TEMPERATURE FOR A PREDETERMINED PERIOD OF TIME TO FORM AN ETHANEDIOL SOLUTION AND CRYSTALS OF TEREPHTHALIC ACID.
MYPI9500915 1994-04-11 1995-04-08 Improved polyethylene terephthalate decontamination MY128311A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPM4993A AUPM499394A0 (en) 1994-04-11 1994-04-11 Improved polyethylene terephthalate decontamination

Publications (1)

Publication Number Publication Date
MY128311A true MY128311A (en) 2007-01-31

Family

ID=3779573

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9500915 MY128311A (en) 1994-04-11 1995-04-08 Improved polyethylene terephthalate decontamination

Country Status (5)

Country Link
AU (1) AUPM499394A0 (en)
MY (1) MY128311A (en)
TW (1) TW345587B (en)
WO (1) WO1995027753A1 (en)
ZA (1) ZA952933B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6472557B1 (en) * 1999-02-10 2002-10-29 Eastman Chemical Company Process for recycling polyesters
PT1138663E (en) * 2000-02-29 2003-03-31 Massimo Broccatelli A METHOD FOR THE RECOVERY OF TEREFTALIC ACID FROM SUBSTANCES CONTAINING POLY (ETHYLENE-TEREATALATE)
EP1134211B1 (en) * 2000-02-29 2002-12-18 Massimo Broccatelli Method of recovering chemical species by depolymerization of poly(ethylene terephthalate) and related use
CZ2000969A3 (en) 2000-03-17 2001-08-15 Milan Ing. Šírek A method of chemical recycling of polyethylene terephthalate waste
US6720448B2 (en) 2000-10-11 2004-04-13 Massimo Broccatelli Method of recovering chemical species by depolymerization of poly (ethylene terephthalate) and related use
US7214723B2 (en) 2003-02-27 2007-05-08 Petrecycle Ltd. Method for the decontamination of polyethylene terephthalate
US8889820B2 (en) 2012-02-15 2014-11-18 Saudi Basic Industries Corporation Amorphous, high glass transition temperature copolyester compositions, methods of manufacture, and articles thereof
US8901273B2 (en) 2012-02-15 2014-12-02 Saudi Basic Industries Corporation Amorphous, high glass transition temperature copolyester compositions, methods of manufacture, and articles thereof
US9828461B2 (en) 2012-03-01 2017-11-28 Sabic Global Technologies B.V. Poly(alkylene co-adipate terephthalate) prepared from recycled polyethylene terephthalate having low impurity levels
US8895660B2 (en) 2012-03-01 2014-11-25 Saudi Basic Industries Corporation Poly(butylene-co-adipate terephthalate), method of manufacture, and uses thereof
SG11201406229PA (en) 2012-04-20 2014-11-27 Perpetual Global Technologies Ltd Flakes of ester mixtures and methods for their production
US9550713B1 (en) 2015-07-09 2017-01-24 Loop Industries, Inc. Polyethylene terephthalate depolymerization
US12071519B2 (en) 2017-09-15 2024-08-27 9449710 Canada Inc. Terephthalic acid esters formation
US10252976B1 (en) 2017-09-15 2019-04-09 9449710 Canada Inc. Terephthalic acid esters formation
CN117326941A (en) 2018-06-25 2024-01-02 9449710加拿大公司 Formation of terephthalic acid esters
US11248103B2 (en) 2019-03-20 2022-02-15 9449710 Canada Inc. Process for the depolymerization of polyethylene terephthalate (PET)
CN112708947A (en) * 2020-12-14 2021-04-27 浙江理工大学 Preparation method of self-crimping fiber with recycled polyester as raw material
CN116554025B (en) * 2023-05-19 2026-02-03 广东绿王新材料有限公司 Method for chemically preparing BHET powder from polyester bottle flakes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH550753A (en) * 1970-11-26 1974-06-28 Sir Soc Italiana Resine Spa PROCEDURE FOR THE DEPOLYMERIZATION OF POLYETHYLENTEREPHTHALATE.
GB2123403A (en) * 1982-07-09 1984-02-01 Celanese Mexicana Sa Continuous procedure for obtaining pure terephthalic acid and glycol starting from polyethylene terephthalate waste
US5298530A (en) * 1992-11-25 1994-03-29 Eastman Kodak Company Process of recovering components from scrap polyester

Also Published As

Publication number Publication date
TW345587B (en) 1998-11-21
ZA952933B (en) 1996-11-05
WO1995027753A1 (en) 1995-10-19
AUPM499394A0 (en) 1994-05-05

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