SG75780A1 - Process for recovery of alkali metal or alkali earth metal terephtalate and alkylene glycol from alkylene polyterephtalates - Google Patents

Process for recovery of alkali metal or alkali earth metal terephtalate and alkylene glycol from alkylene polyterephtalates

Info

Publication number
SG75780A1
SG75780A1 SG1996005398A SG1996005398A SG75780A1 SG 75780 A1 SG75780 A1 SG 75780A1 SG 1996005398 A SG1996005398 A SG 1996005398A SG 1996005398 A SG1996005398 A SG 1996005398A SG 75780 A1 SG75780 A1 SG 75780A1
Authority
SG
Singapore
Prior art keywords
alkylene
alkali
polyterephtalates
terephtalate
recovery
Prior art date
Application number
SG1996005398A
Other languages
English (en)
Inventor
Jacques Benzaria
Bruno Durif-Varambon
Francois Dawans
Jean-Bernard Gaillard
Original Assignee
Inst Francais Du Petrole
Benzaria Jacques Raphael
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 Inst Francais Du Petrole, Benzaria Jacques Raphael filed Critical Inst Francais Du Petrole
Publication of SG75780A1 publication Critical patent/SG75780A1/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
    • 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
    • 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
    • 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)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyethers (AREA)
SG1996005398A 1992-11-09 1993-10-28 Process for recovery of alkali metal or alkali earth metal terephtalate and alkylene glycol from alkylene polyterephtalates SG75780A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9213583A FR2697839B1 (fr) 1992-11-09 1992-11-09 Procédé amélioré de récupération de téréphtalate de métal alcalin et d'alkylène glycol à partir de polytéréphtalates d'alkylènes.

Publications (1)

Publication Number Publication Date
SG75780A1 true SG75780A1 (en) 2000-10-24

Family

ID=9435449

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996005398A SG75780A1 (en) 1992-11-09 1993-10-28 Process for recovery of alkali metal or alkali earth metal terephtalate and alkylene glycol from alkylene polyterephtalates

Country Status (10)

Country Link
EP (1) EP0597751B1 (ja)
JP (1) JP2824551B2 (ja)
KR (1) KR100278525B1 (ja)
CN (1) CN1041515C (ja)
CA (1) CA2102766A1 (ja)
DE (1) DE69316545T2 (ja)
ES (1) ES2114020T3 (ja)
FR (1) FR2697839B1 (ja)
SG (1) SG75780A1 (ja)
TW (1) TW253893B (ja)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5580905A (en) * 1994-04-28 1996-12-03 United Resource Recovery Corporation Process for recycling polyesters
JP3069917B2 (ja) * 1995-12-30 2000-07-24 スンキョン インダストリーズカンパニーズ，リミテッド テレフタル酸の製造方法
EP0873296B1 (en) * 1995-12-30 2001-08-29 Sunkyong Industries Co., Ltd. Process for manufacturing terephthalic acid
CN1113846C (zh) * 1995-12-30 2003-07-09 鲜京工业股份有限公司 生产对苯二甲酸的方法
ES2232867T3 (es) * 1996-04-01 2005-06-01 Phoenix Technologies, L.P. Descontaminacion mejorada de terftalato de polietileno reciclado (rpet)mediante la reduccion del tamaño de las particulas.
FR2767131B1 (fr) * 1997-08-06 1999-10-22 Tredi Procede de recuperation d'acide terephtalique et, le cas echeant, de soude a partir d'une solution de polyterephtalate de sodium
EP1138663B1 (en) * 2000-02-29 2002-10-16 Massimo Broccatelli Method for recovery of terephthalic acid from a material containing poly(ethylene terephthalates)
EP1134211B1 (en) * 2000-02-29 2002-12-18 Massimo Broccatelli Method of recovering chemical species by depolymerization of poly(ethylene terephthalate) and related use
US6720448B2 (en) 2000-10-11 2004-04-13 Massimo Broccatelli Method of recovering chemical species by depolymerization of poly (ethylene terephthalate) and related use
JP2008133398A (ja) * 2006-11-29 2008-06-12 Toshiba Corp Ｐｅｔを含む樹脂の熱分解油化処理装置
CZ299908B6 (cs) 2007-07-13 2008-12-29 Ústav chemických procesu Akademie ved CR Zpusob chemické depolymerace odpadního polyethylentereftalátu
DE102018122210B4 (de) * 2018-09-12 2023-06-29 Rittec Umwelttechnik Gmbh Verfahren und Verwendung einer Vorrichtung zur Wiederaufarbeitung von Polyalkylenterephthalat enthaltenden Abfällen
DE102019135578A1 (de) * 2019-12-20 2021-06-24 Rittec Umwelttechnik Gmbh Verfahren, Vorrichtung und Verwendung zur Wiederaufarbeitung
DE102020106457A1 (de) * 2020-03-10 2021-09-16 Rittec Umwelttechnik Gmbh Verfahren und Vorrichtung zur Wiederaufarbeitung Polykondensat-haltiger Abfälle
CA3221682A1 (en) * 2021-06-09 2022-12-15 Arturo Guadalupe FREGOSO INFANTE Process for obtaining terephthalic acid and recovering sodium hydroxide from a sodium terephthalate solution produced from reused polyethylene terephthalate (pet)
FR3124186B1 (fr) * 2021-06-17 2024-04-12 Ifp Energies Now Procédé de preparation d’un monomere diester purifie et decolore par dépolymérisation d’une charge polyester
FR3124185B1 (fr) * 2021-06-17 2024-04-12 Ifp Energies Now Procédé de purification d’un monomere diester terephtalate par adsorption
KR102381508B1 (ko) * 2021-09-28 2022-04-01 김 영 범 고유점도가 0.75㎗/g 이상인 고중합도의 폴리에틸렌테레프탈레이트를 이용한 테레프탈산의 제조방법

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1130695A (en) * 1966-04-18 1968-10-16 Hercules Inc Production of terephthalic acid by hydrolysis of an alkyl terephthalate
DD124024A1 (ja) * 1976-02-26 1977-02-02
DE2802125B2 (de) * 1978-01-19 1980-07-17 Josef A. 7144 Asperg Blach Schneckenmaschine zum Bearbeiten von festen, flüssigen und zähviskosen Materialien
DE3014643A1 (de) * 1980-04-16 1981-10-22 Bayer Ag, 5090 Leverkusen Gleichsinnig rotierbare doppelschnecke
US5045122A (en) * 1989-12-14 1991-09-03 Eastman Kodak Company Ester hydrolysis and depolymerization of polyester and polycarbonate polymers
FR2672049A1 (fr) * 1991-01-30 1992-07-31 Benzaria Jacques Procede de fabrication de terephtalate de metal alcalin ou alcalino-terreux ou de l'acide terephilique de purete elevee.

Also Published As

Publication number Publication date
EP0597751B1 (fr) 1998-01-21
CA2102766A1 (fr) 1994-05-10
TW253893B (ja) 1995-08-11
CN1090569A (zh) 1994-08-10
JPH06199734A (ja) 1994-07-19
FR2697839B1 (fr) 1995-01-13
ES2114020T3 (es) 1998-05-16
DE69316545D1 (de) 1998-02-26
FR2697839A1 (fr) 1994-05-13
KR940011427A (ko) 1994-06-21
KR100278525B1 (ko) 2001-02-01
JP2824551B2 (ja) 1998-11-11
CN1041515C (zh) 1999-01-06
EP0597751A1 (fr) 1994-05-18
DE69316545T2 (de) 1998-07-16

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