DE1169915B - Verfahren zum Abbau von Polyaethylen-terephthalat zu Dimethylterephthalat - Google Patents

Verfahren zum Abbau von Polyaethylen-terephthalat zu Dimethylterephthalat

Info

Publication number
DE1169915B
DE1169915B DEV22920A DEV0022920A DE1169915B DE 1169915 B DE1169915 B DE 1169915B DE V22920 A DEV22920 A DE V22920A DE V0022920 A DEV0022920 A DE V0022920A DE 1169915 B DE1169915 B DE 1169915B
Authority
DE
Germany
Prior art keywords
aerosol
polyethylene terephthalate
methanol
reaction
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.)
Pending
Application number
DEV22920A
Other languages
German (de)
English (en)
Inventor
Dipl-Chem Dr Rudolf Lotz
Dipl-Ing Clemens Neuhaus
Gerhard Wick
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.)
Glanzstoff AG
Original Assignee
Glanzstoff AG
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
Priority to NL136399D priority Critical patent/NL136399C/xx
Priority to BE635706D priority patent/BE635706A/fr
Priority to NL296330D priority patent/NL296330A/xx
Application filed by Glanzstoff AG filed Critical Glanzstoff AG
Priority to DEV22920A priority patent/DE1169915B/de
Priority to CH928363A priority patent/CH425761A/de
Priority to AT634063A priority patent/AT243252B/de
Priority to US30070163 priority patent/US3321510A/en
Priority to GB3254263A priority patent/GB976073A/en
Publication of DE1169915B publication Critical patent/DE1169915B/de
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C07C69/80—Phthalic acid esters
    • C07C69/82—Terephthalic acid esters
    • 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
    • C08J11/14—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 steam or water
    • 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
    • C08J11/18—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 organic material
    • C08J11/22—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 organic material by treatment with organic oxygen-containing compounds
    • C08J11/24—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 organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
    • 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)
  • Polyesters Or Polycarbonates (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
DEV22920A 1962-08-17 1962-08-17 Verfahren zum Abbau von Polyaethylen-terephthalat zu Dimethylterephthalat Pending DE1169915B (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL136399D NL136399C (enExample) 1962-08-17
BE635706D BE635706A (enExample) 1962-08-17
NL296330D NL296330A (enExample) 1962-08-17
DEV22920A DE1169915B (de) 1962-08-17 1962-08-17 Verfahren zum Abbau von Polyaethylen-terephthalat zu Dimethylterephthalat
CH928363A CH425761A (de) 1962-08-17 1963-07-25 Verfahren zum drucklosen Abbau von Polyäthylenterephthalat zu Dimethylterephthalat
AT634063A AT243252B (de) 1962-08-17 1963-08-06 Verfahren zum drucklosen Abbau von Polyäthylenterephthalat zu Dimethylterephthalat
US30070163 US3321510A (en) 1962-08-17 1963-08-07 Process for the recovery of dimethyl terephthalate from polyethylene terephthalate
GB3254263A GB976073A (enExample) 1962-08-17 1963-08-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV22920A DE1169915B (de) 1962-08-17 1962-08-17 Verfahren zum Abbau von Polyaethylen-terephthalat zu Dimethylterephthalat

Publications (1)

Publication Number Publication Date
DE1169915B true DE1169915B (de) 1964-05-14

Family

ID=7580187

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV22920A Pending DE1169915B (de) 1962-08-17 1962-08-17 Verfahren zum Abbau von Polyaethylen-terephthalat zu Dimethylterephthalat

Country Status (7)

Country Link
US (1) US3321510A (enExample)
AT (1) AT243252B (enExample)
BE (1) BE635706A (enExample)
CH (1) CH425761A (enExample)
DE (1) DE1169915B (enExample)
GB (1) GB976073A (enExample)
NL (2) NL136399C (enExample)

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US20130126102A1 (en) * 2010-07-29 2013-05-23 Tanabe Engineering Corporation Vacuum-pressure spray-drying method and vacuum-pressure spray-drying device

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Publication number Priority date Publication date Assignee Title
US5051528A (en) * 1990-04-24 1991-09-24 Eastman Kodak Company Recovery process for ethylene glycol and dimethylterephthalate
CA2055066A1 (en) * 1990-11-09 1992-05-10 Robert E. Michel Recovery of methyl esters of aromatic acids and glycols from thermoplastic polyester scrap
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
US5414106A (en) * 1994-02-14 1995-05-09 Hoechst Celanese Corporation Process for recovering dimethyl terephthalate
US5414022A (en) * 1994-03-10 1995-05-09 Eastman Kodak Company Process of recovering components from polyester resins
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
US5414107A (en) * 1994-07-20 1995-05-09 Hoechst Celanese Corporation Process for recycling polyethylene terephthalate process residues containing alkali metal organic salts
US5765728A (en) * 1995-03-27 1998-06-16 Eastman Kodak Company Method and apparatus for feeding chopped polyester scrap
US5502239A (en) * 1995-08-07 1996-03-26 Hoechst Celanese Corporation Process for recovering dimethyl terephthalate
US5744503A (en) * 1996-02-01 1998-04-28 Hoechst Celanese Corporation Recycling polyester and recovering glycols
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
US6919383B2 (en) * 2001-04-10 2005-07-19 North Carolina State University CO2-assisted deploymerization, purification and recycling of step-growth polymers
US20050054757A1 (en) * 2003-09-10 2005-03-10 Pearson Jason Clay Method for reducing the acetaldehyde level in polyesters
US20080006961A1 (en) * 2004-10-18 2008-01-10 Hayward Donald W Method For Accelerating The Solid-Stating Of Polyethylene Terephthalate
RU2384592C1 (ru) * 2008-11-27 2010-03-20 Учреждение Российской Академии Наук Институт Общей И Неорганической Химии Им. Н.С. Курнакова Ран (Ионх Ран) Способ переработки отходов полиэтилентерефталата в порошкообразный продукт
US9458354B2 (en) 2010-10-06 2016-10-04 Resinate Technologies, Inc. Polyurethane dispersions and methods of making and using same
CA2838825A1 (en) 2011-06-10 2012-12-13 Kristopher M. Felice Clear coatings acrylic coatings
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
US12071519B2 (en) 2017-09-15 2024-08-27 9449710 Canada Inc. Terephthalic acid esters formation
MY205894A (en) 2018-06-25 2024-11-19 9449710 Canada Inc Terephthalic acid esters formation
US11248103B2 (en) 2019-03-20 2022-02-15 9449710 Canada Inc. Process for the depolymerization of polyethylene terephthalate (PET)
WO2021021902A1 (en) 2019-07-29 2021-02-04 Eastman Chemical Company Process for the preparation of polyesters with recycled monomers from pyrolysis and methanolysis
CN114787233B (zh) 2019-10-08 2024-08-27 伊士曼化工公司 用于具有回收料含量的可结晶反应器级树脂的催化剂体系
CN114787256B (zh) 2019-10-25 2025-05-09 伊士曼化工公司 由回收共聚酯生产的共聚酯
US20230014630A1 (en) 2019-12-19 2023-01-19 Eastman Chemical Company Method for producing dimethyl terephthalate from polyester methanolysis depolymerization systems
KR20220119656A (ko) 2019-12-19 2022-08-30 이스트만 케미칼 컴파니 재활용물을 갖는 폴리에스터의 제조 방법
KR20220119655A (ko) 2019-12-19 2022-08-30 이스트만 케미칼 컴파니 폴리에스터 가메탄올분해 해중합 생성물 스트림의 처리 방법
CN114787119A (zh) 2019-12-20 2022-07-22 伊士曼化工公司 用于pet甲醇分解的催化剂
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WO2021163104A1 (en) 2020-02-10 2021-08-19 Eastman Chemical Company Chemical recycling of solvolysis glycol column bottoms coproduct streams
CN115052730A (zh) 2020-02-10 2022-09-13 伊士曼化工公司 处理的混合塑料废物流的化学回收
US12686753B2 (en) 2020-02-10 2026-07-21 Eastman Chemical Company Chemical recycling of solvolysis terephthalyl column bottoms coproduct streams
JP2023521995A (ja) 2020-04-13 2023-05-26 イーストマン ケミカル カンパニー プラスチック乾燥細粒のケミカルリサイクル
CA3174714A1 (en) 2020-04-13 2021-10-21 Bruce Roger Debruin Chemical recycling of colored plastics mixtures
MX2022012394A (es) 2020-04-13 2022-12-07 Eastman Chem Co Reciclaje quimico de mezclas de plastico que contienen metales.
EP4136160A1 (en) 2020-04-13 2023-02-22 Eastman Chemical Company Chemical recycling of waste plastics from various sources, including wet fines
US12617921B2 (en) 2020-04-13 2026-05-05 Eastman Chemical Company Chemical recycling of reclaimer flake reject
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US12624186B2 (en) 2020-04-13 2026-05-12 Eastman Chemical Company Chemical recycling of plastic purge materials
CN118176247A (zh) 2021-10-06 2024-06-11 伊士曼化工公司 由聚酯地毯纤维生产原生品质pet和共聚酯原料
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US20250002641A1 (en) 2021-11-22 2025-01-02 Eastman Chemical Company Recyclable copolyesters articles with living hinges
LU102949B1 (en) 2022-05-03 2023-11-06 Univ Hamburg Method for the depolymerization of a terephthalate polyester
EP4273190B1 (en) 2022-05-03 2026-06-03 Universität Hamburg Method for the depolymerization of a terephthalate polyester
CN115353904B (zh) * 2022-08-02 2024-02-23 中国矿业大学 一种过热蒸汽体系高效液化塑料垃圾制油的方法及其装置
WO2024220458A1 (en) 2023-04-19 2024-10-24 Eastman Chemical Company Copolyester compositions for recyclable heavy gauge sheet articles
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131202B (de) * 1961-01-12 1962-06-14 Glanzstoff Ag Verfahren zum Abbau von Polyaethylenterephthalat zu Terephthalsaeuredimethylester

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148208A (en) * 1964-09-08 Process for recovery of dimethyl
US3037050A (en) * 1955-08-05 1962-05-29 Glanzstoff Ag Regeneration of terephthalic acid dimethyl ester from polyethylene terephthalate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131202B (de) * 1961-01-12 1962-06-14 Glanzstoff Ag Verfahren zum Abbau von Polyaethylenterephthalat zu Terephthalsaeuredimethylester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130126102A1 (en) * 2010-07-29 2013-05-23 Tanabe Engineering Corporation Vacuum-pressure spray-drying method and vacuum-pressure spray-drying device
US8966783B2 (en) * 2010-07-29 2015-03-03 Tanabe Engineering Corporation Vacuum-pressure spray-drying method and vacuum-pressure spray-drying device

Also Published As

Publication number Publication date
CH425761A (de) 1966-12-15
NL136399C (enExample) 1900-01-01
US3321510A (en) 1967-05-23
NL296330A (enExample) 1900-01-01
AT243252B (de) 1965-11-10
GB976073A (enExample) 1964-11-25
BE635706A (enExample)

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