GB1109767A - Improvements in the saponification of polyalkylene terephthalates - Google Patents

Improvements in the saponification of polyalkylene terephthalates

Info

Publication number
GB1109767A
GB1109767A GB1041666A GB1041666A GB1109767A GB 1109767 A GB1109767 A GB 1109767A GB 1041666 A GB1041666 A GB 1041666A GB 1041666 A GB1041666 A GB 1041666A GB 1109767 A GB1109767 A GB 1109767A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
saponification
ethylene glycol
polyalkylene terephthalates
terephthalate
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
GB1041666A
Other languages
English (en)
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1109767A publication Critical patent/GB1109767A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C08J11/16—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 inorganic material
    • 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
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)
GB1041666A 1965-03-10 1966-03-09 Improvements in the saponification of polyalkylene terephthalates Expired GB1109767A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US43875465A 1965-03-10 1965-03-10
US52635266A 1966-02-10 1966-02-10
US52639166A 1966-02-10 1966-02-10
US52634666A 1966-02-10 1966-02-10

Publications (1)

Publication Number Publication Date
GB1109767A true GB1109767A (en) 1968-04-18

Family

ID=27503864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1041666A Expired GB1109767A (en) 1965-03-10 1966-03-09 Improvements in the saponification of polyalkylene terephthalates

Country Status (6)

Country Link
US (1) US3544622A (enExample)
DE (1) DE1267678B (enExample)
FR (1) FR1470920A (enExample)
GB (1) GB1109767A (enExample)
LU (1) LU50612A1 (enExample)
NL (1) NL6603089A (enExample)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542239A (en) * 1981-11-18 1985-09-17 Board Of Control Of Michigan Technological University Process for recovering terephthalic acid from waste polyethylene terephthalate
DE69325803T2 (de) * 1992-05-18 1999-12-09 Swig Pty. Ltd., Malvern Säuberung von polyethylene terephthalaten
US5602187A (en) * 1992-05-18 1997-02-11 Swig Pty Ltd. Polyethylene terephthalate decontamination
US5545746A (en) * 1993-11-09 1996-08-13 Institut Francais Du Petrole Method for recovery of alkali metal or alkaline-earth metal terephthalate and of alkylene glycol from polyethylene terephthalates
US5580905A (en) * 1994-04-28 1996-12-03 United Resource Recovery Corporation Process for recycling polyesters
US5395858A (en) * 1994-04-28 1995-03-07 Partek, Inc. Process for recycling polyester
US5532404A (en) * 1994-05-27 1996-07-02 E. I. Du Pont De Nemours And Company Monomer recovery process for contaminated polymers
US5710315A (en) * 1994-05-27 1998-01-20 E. I. Du Pont De Nemours And Company Monomer recovery process for contaminated polymers
ES2114449B1 (es) * 1995-08-23 1999-07-16 Garcia Juan Soto Procedimieto para el reciclaje de los residuos de fangos y lodos procedentes de la regeneracion de glicol.
US6031128A (en) * 1995-12-30 2000-02-29 Sunkyong Industries Co., Ltd. Process for manufacturing terephthalic acid
EP0873296B1 (en) * 1995-12-30 2001-08-29 Sunkyong Industries Co., Ltd. Process for manufacturing terephthalic acid
US5958987A (en) 1996-04-10 1999-09-28 The Coca-Cola Company Process for separating polyester from other materials
FR2774374B1 (fr) * 1998-01-30 2001-09-21 Tredi Procede pour la production de terephtalate d'un metal alcalin purifie, issu de produits de saponification de polyterephtalates d'alkylene de recuperation
DE19810874A1 (de) * 1998-03-13 1999-09-16 Delphi Automotive Systems Gmbh Verfahren zur Aufbereitung von Edel- und/oder Halbedelmetallen aus Leiterplatten
JP3808672B2 (ja) * 1999-11-26 2006-08-16 東洋製罐株式会社 回収ポリエチレンテレフタレート粉砕品からのテレフタル酸の工業的回収方法
DE60239100D1 (de) * 2001-06-19 2011-03-17 United Resource Recovery Corp Verfahren zur trennung von polyester von anderen materialien
US7098299B1 (en) 2005-03-16 2006-08-29 United Resource Recovery Corporation Separation of contaminants from polyester materials
CZ301118B6 (cs) * 2006-09-08 2009-11-11 Ústav chemických procesu Akademie ved CR Zpusob chemické recyklace odpadního polyethylentereftalátu
CZ299908B6 (cs) 2007-07-13 2008-12-29 Ústav chemických procesu Akademie ved CR Zpusob chemické depolymerace odpadního polyethylentereftalátu
US9458354B2 (en) 2010-10-06 2016-10-04 Resinate Technologies, Inc. Polyurethane dispersions and methods of making and using same
US8940401B2 (en) 2011-06-10 2015-01-27 Resinate Technologies, Inc. Clear coatings acrylic coatings
JP6042827B2 (ja) 2012-01-27 2016-12-14 株式会社ジナリス テレフタル酸カリウム塩からの有用化学品の製造法
US9732026B2 (en) 2012-12-14 2017-08-15 Resinate Technologies, Inc. Reaction products containing hydroxyalkylterephthalates and methods of making and using same
ITUB20160843A1 (it) * 2016-02-18 2017-08-18 Recyclinnova S R L S Processo di conversione di rifiuti in Polietilene Tereftalato (PET) in prodotti chimici di valore
CZ2018182A3 (cs) 2018-04-12 2019-07-10 Tomáš Kamarýt Způsob odstraňování etiket z plastových obalů
DE102018122210B4 (de) 2018-09-12 2023-06-29 Rittec Umwelttechnik Gmbh Verfahren und Verwendung einer Vorrichtung zur Wiederaufarbeitung von Polyalkylenterephthalat enthaltenden Abfällen
TWI694064B (zh) * 2018-09-26 2020-05-21 遠東新世紀股份有限公司 對苯二甲酸的製造方法及其系統
US12312306B2 (en) * 2019-02-27 2025-05-27 Ecole Polytechnique Federale De Lausanne (Epfl) Degradation of plastic materials into terephthalic acid (TPA), ethylene glycol and/or other monomers that form the plastic materials
EP3835023A1 (de) * 2019-12-13 2021-06-16 Lenzing Aktiengesellschaft Verfahren zur verwertung von inhaltsstoffen aus mischtextilabfällen
DE102019135578A1 (de) 2019-12-20 2021-06-24 Rittec Umwelttechnik Gmbh Verfahren, Vorrichtung und Verwendung zur Wiederaufarbeitung
DE102021105970A1 (de) * 2021-03-11 2022-09-15 Rittec Umwelttechnik Gmbh Verfahren zur Gewinnung aromatischer Dicarbonsäuren aus ihren Metallsalzen
EP4201988A4 (en) * 2021-07-19 2025-04-09 Lg Chem, Ltd. Monomer composition for synthesizing recycled plastic, preparation method therefor, and recycled plastic, molded article, and plasticizer composition each using same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB822834A (en) * 1957-01-11 1959-11-04 Jaroslav Pitat A method of processing waste of polyethylene terephthalate by hydrolysis
DE1061772B (de) * 1957-02-08 1959-07-23 Rhodiaceta Verfahren zur Herstellung von Terephthalsaeure durch Abbau von Polymethylenterephthalaten

Also Published As

Publication number Publication date
NL6603089A (enExample) 1966-09-12
FR1470920A (fr) 1967-02-24
US3544622A (en) 1970-12-01
LU50612A1 (enExample) 1966-09-12
DE1267678B (de) 1968-05-09

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