CA922050A - Method of depolymerizing poly-ethyleneterephthalate - Google Patents

Method of depolymerizing poly-ethyleneterephthalate

Info

Publication number
CA922050A
CA922050A CA128561A CA128561A CA922050A CA 922050 A CA922050 A CA 922050A CA 128561 A CA128561 A CA 128561A CA 128561 A CA128561 A CA 128561A CA 922050 A CA922050 A CA 922050A
Authority
CA
Canada
Prior art keywords
ethyleneterephthalate
depolymerizing
poly
depolymerizing poly
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.)
Expired
Application number
CA128561A
Other languages
English (en)
Other versions
CA128561S (en
Inventor
Aglietti Giancarlo
E. Nova Vittorio
Ligorati Ferdinando
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.)
Societa Italiana Resine SpA SIR
Original Assignee
Societa Italiana Resine SpA SIR
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 Societa Italiana Resine SpA SIR filed Critical Societa Italiana Resine SpA SIR
Application granted granted Critical
Publication of CA922050A publication Critical patent/CA922050A/en
Expired legal-status Critical Current

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
    • 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
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)
CA128561A 1970-11-26 1971-11-25 Method of depolymerizing poly-ethyleneterephthalate Expired CA922050A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT3220770 1970-11-26

Publications (1)

Publication Number Publication Date
CA922050A true CA922050A (en) 1973-02-27

Family

ID=11235004

Family Applications (1)

Application Number Title Priority Date Filing Date
CA128561A Expired CA922050A (en) 1970-11-26 1971-11-25 Method of depolymerizing poly-ethyleneterephthalate

Country Status (9)

Country Link
US (1) US3776945A (it)
JP (1) JPS543857B1 (it)
CA (1) CA922050A (it)
CH (1) CH550753A (it)
DE (1) DE2158560C2 (it)
FR (1) FR2116056A5 (it)
GB (1) GB1334558A (it)
NL (1) NL7116080A (it)
YU (1) YU33894B (it)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449073A1 (fr) * 1979-02-16 1980-09-12 Rhone Poulenc Ind Procede de recuperation de methanol et de glycol a partir de residus issus de la fabrication du polyterephtalate d'ethyleneglycol et de ses intermediaires
US5051528A (en) * 1990-04-24 1991-09-24 Eastman Kodak Company Recovery process for ethylene glycol and dimethylterephthalate
NZ252649A (en) * 1992-05-18 1996-03-26 Petwest Pty Ltd Substituted Fo Removing contaminants from and depolymerisation of (used) polyethylene terephthalate (pet) by transesterification using ethylene glycol at elevated temperature and various purification steps to yield terephthalic acid
US5602187A (en) * 1992-05-18 1997-02-11 Swig Pty Ltd. Polyethylene terephthalate decontamination
US5504121A (en) * 1992-05-18 1996-04-02 Swig Pty Ltd. Polyethylene terephthalate decontamination
DE4227299C1 (de) * 1992-08-18 1994-01-27 Hoechst Ag Verfahren zur Herstellung von monomeren Terephthalsäurediestern und Diolen aus Polyestern
US5298530A (en) * 1992-11-25 1994-03-29 Eastman Kodak Company Process of recovering components from scrap polyester
US5498749A (en) * 1993-10-22 1996-03-12 Eastman Chemical Company Process for separating cyclohexane dimethanol from dimethyl terephthalate
US5414022A (en) * 1994-03-10 1995-05-09 Eastman Kodak Company Process of recovering components from polyester resins
AUPM499394A0 (en) * 1994-04-11 1994-05-05 Petwest Pty Ltd Improved polyethylene terephthalate decontamination
US5710315A (en) * 1994-05-27 1998-01-20 E. I. Du Pont De Nemours And Company Monomer recovery process for contaminated polymers
US5532404A (en) * 1994-05-27 1996-07-02 E. I. Du Pont De Nemours And Company Monomer recovery process for contaminated polymers
US5765728A (en) * 1995-03-27 1998-06-16 Eastman Kodak Company Method and apparatus for feeding chopped polyester scrap
US6136869A (en) * 1997-10-17 2000-10-24 Eastman Chemical Company Depolymerization process for recycling polyesters
US6472557B1 (en) 1999-02-10 2002-10-29 Eastman Chemical Company Process for recycling polyesters
JP3763784B2 (ja) * 1999-09-13 2006-04-05 旭化成せんい株式会社 エステル形成性モノマーの製造方法
KR100722161B1 (ko) * 2000-07-31 2007-05-28 가부시키가이샤 펫 리버스 비스-β-히드록시에틸테레프탈레이트
MXPA05009111A (es) * 2003-02-27 2006-01-27 Petrecycle Ltd Metodo para la descontaminacion de tereftalato de polietileno.
US20050054757A1 (en) * 2003-09-10 2005-03-10 Pearson Jason Clay Method for reducing the acetaldehyde level in polyesters
US20130029068A1 (en) 2011-07-28 2013-01-31 Eastman Chemical Company Extrusion blow molded articles
US10000588B2 (en) 2011-07-28 2018-06-19 Eastman Chemical Company Coating for the inner surface of plastic bottles for protection against degradation from volatile organic compounds
WO2013025186A1 (en) 2011-08-12 2013-02-21 Eastman Chemical Company Process for the preparation of polyesters with high recycle content
KR20150104597A (ko) * 2013-01-11 2015-09-15 릴라이언스 인더스트리즈 리미티드 폴리에스테르 폐기물 재생 공정
KR20220041177A (ko) 2019-07-29 2022-03-31 이스트만 케미칼 컴파니 열분해 및 가메탄올분해로부터의 재활용된 단량체를 갖는 폴리에스테르의 제조 방법
CN112707983A (zh) * 2019-10-24 2021-04-27 中国石油化工股份有限公司 低粘度聚乙烯醇及其生产方法
WO2021080779A1 (en) 2019-10-25 2021-04-29 Eastman Chemical Company Crystallizable shrinkable films and thermoformable films and sheets made from reactor grade resins with recycled content
EP4077267A1 (en) 2019-12-19 2022-10-26 Eastman Chemical Company Method for producing dimethyl terephthalate from polyester methanolysis depolymerization systems
CA3162305A1 (en) 2019-12-19 2021-06-24 Earl Edmondson Howell Jr. Method for manufacture of polyesters with recycle content
WO2021126936A1 (en) 2019-12-19 2021-06-24 Eastman Chemical Company Process for treating polyester methanolysis depolymerization product streams
JP2023506948A (ja) 2019-12-20 2023-02-20 イーストマン ケミカル カンパニー Ｐｅｔメタノール分解のための触媒
JP2024537179A (ja) 2021-10-06 2024-10-10 イーストマン ケミカル カンパニー ポリエステルカーペット繊維からのバージン品質のｐｅｔおよびコポリエステル原料の製造
EP4423047A1 (en) 2021-10-25 2024-09-04 Eastman Chemical Company Processes for recovering dialkyl terephthalates from polyester compositions
CN118284564A (zh) 2021-11-22 2024-07-02 伊士曼化工公司 具有活动铰链的可回收共聚酯制品
WO2023091539A1 (en) 2021-11-22 2023-05-25 Eastman Chemical Company Recyclable copolyesters articles with living hinges
CN118339083A (zh) 2021-11-22 2024-07-12 伊士曼化工公司 制造具有活动铰链的可回收共聚酯制品的方法
CN118284642A (zh) 2021-11-22 2024-07-02 伊士曼化工公司 制造具有活动铰链的可回收共聚酯制品的方法
EP4273190A1 (en) 2022-05-03 2023-11-08 Universität Hamburg Method for the depolymerization of a terephthalate polyester
LU102949B1 (en) 2022-05-03 2023-11-06 Univ Hamburg Method for the depolymerization of a terephthalate polyester

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1144711B (de) * 1960-09-10 1963-03-07 Hoechst Ag Verfahren zur kontinuierlichen Herstellung von Terephthalsaeurealkylestern

Also Published As

Publication number Publication date
JPS543857B1 (it) 1979-02-27
FR2116056A5 (it) 1972-07-07
DE2158560A1 (de) 1972-06-15
NL7116080A (it) 1972-05-30
US3776945A (en) 1973-12-04
DE2158560C2 (de) 1983-05-05
GB1334558A (en) 1973-10-24
YU299771A (en) 1977-12-31
CH550753A (it) 1974-06-28
YU33894B (en) 1978-06-30

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