CH550753A - Procedimento per la depolimerizzazione di polietilentereftalato. - Google Patents

Procedimento per la depolimerizzazione di polietilentereftalato.

Info

Publication number
CH550753A
CH550753A CH1606171A CH1606171A CH550753A CH 550753 A CH550753 A CH 550753A CH 1606171 A CH1606171 A CH 1606171A CH 1606171 A CH1606171 A CH 1606171A CH 550753 A CH550753 A CH 550753A
Authority
CH
Switzerland
Prior art keywords
polyethylenterephthalate
depolymerization
procedure
Prior art date
Application number
CH1606171A
Other languages
English (en)
Original Assignee
Sir Soc Italiana Resine Spa
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 Sir Soc Italiana Resine Spa filed Critical Sir Soc Italiana Resine Spa
Publication of CH550753A publication Critical patent/CH550753A/it

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Polyesters Or Polycarbonates (AREA)
CH1606171A 1970-11-26 1971-11-04 Procedimento per la depolimerizzazione di polietilentereftalato. CH550753A (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH550753A true CH550753A (it) 1974-06-28

Family

ID=11235004

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1606171A CH550753A (it) 1970-11-26 1971-11-04 Procedimento per la depolimerizzazione di polietilentereftalato.

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
ATE182578T1 (de) * 1992-05-18 1999-08-15 Swig Pty Ltd Säuberung von polyethylene terephthalaten
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
CA2419625A1 (en) * 2000-07-31 2003-01-29 Aies Co., Ltd. Bis-.beta.-hydroxyethyl terephthalate
US7214723B2 (en) * 2003-02-27 2007-05-08 Petrecycle Ltd. Method for the decontamination of polyethylene terephthalate
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
EP2943520A1 (en) * 2013-01-11 2015-11-18 Reliance Industries Limited A process for recycling polyester waste
CN114423803A (zh) 2019-07-29 2022-04-29 伊士曼化工公司 用来自热解与甲醇分解的再循环单体制备聚酯的方法
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
WO2021080777A1 (en) 2019-10-25 2021-04-29 Eastman Chemical Company Copolyesters produced from recycled copolyesters
EP4077267A1 (en) 2019-12-19 2022-10-26 Eastman Chemical Company Method for producing dimethyl terephthalate from polyester methanolysis depolymerization systems
MX2022007256A (es) 2019-12-19 2022-07-13 Eastman Chem Co Proceso para tratar corrientes de producto de despolimerizacion de metanolisis de poliester.
JP2023506950A (ja) 2019-12-19 2023-02-20 イーストマン ケミカル カンパニー リサイクル含有物入りのポリエステルの製造方法
MX2022005537A (es) 2019-12-20 2022-06-08 Eastman Chem Co Catalizadores para metanolisis de pet.
EP4413066A1 (en) 2021-10-06 2024-08-14 Eastman Chemical Company Production of virgin-quality pet and copolyester raw materials from polyester carpet fibers
CN118159515A (zh) 2021-10-25 2024-06-07 伊士曼化工公司 从聚酯组合物中回收对苯二甲酸二烷基酯的工艺
WO2023091542A1 (en) 2021-11-22 2023-05-25 Eastman Chemical Company Process for making recyclable copolyesters articles with living hinges
CN118302473A (zh) 2021-11-22 2024-07-05 伊士曼化工公司 具有活动铰链的可回收共聚酯制品
WO2023091540A1 (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
LU102949B1 (en) 2022-05-03 2023-11-06 Univ Hamburg Method for the depolymerization of a terephthalate polyester
EP4273190A1 (en) 2022-05-03 2023-11-08 Universität 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
NL7116080A (it) 1972-05-30
GB1334558A (en) 1973-10-24
YU299771A (en) 1977-12-31
DE2158560C2 (de) 1983-05-05
JPS543857B1 (it) 1979-02-27
CA922050A (en) 1973-02-27
YU33894B (en) 1978-06-30
US3776945A (en) 1973-12-04
DE2158560A1 (de) 1972-06-15
FR2116056A5 (it) 1972-07-07

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Legal Events

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