DE69407872D1 - Verfahren zur Gewinnung von Dimethylnaphthalen-2,6-dicarboxylat - Google Patents

Verfahren zur Gewinnung von Dimethylnaphthalen-2,6-dicarboxylat

Info

Publication number
DE69407872D1
DE69407872D1 DE69407872T DE69407872T DE69407872D1 DE 69407872 D1 DE69407872 D1 DE 69407872D1 DE 69407872 T DE69407872 T DE 69407872T DE 69407872 T DE69407872 T DE 69407872T DE 69407872 D1 DE69407872 D1 DE 69407872D1
Authority
DE
Germany
Prior art keywords
dmn
dicarboxylate
mixture
dimethylnaphthalene
production
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 - Lifetime
Application number
DE69407872T
Other languages
English (en)
Other versions
DE69407872T2 (de
Inventor
Yukio Kuninobu
Koji Sumitani
Kazuhiro Sato
Hisasi Shono
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.)
Teijin Ltd
Original Assignee
Teijin Ltd
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 Teijin Ltd filed Critical Teijin Ltd
Application granted granted Critical
Publication of DE69407872D1 publication Critical patent/DE69407872D1/de
Publication of DE69407872T2 publication Critical patent/DE69407872T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
DE69407872T 1993-06-16 1994-06-13 Verfahren zur Gewinnung von Dimethylnaphthalen-2,6-dicarboxylat Expired - Lifetime DE69407872T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5144945A JP2825733B2 (ja) 1993-06-16 1993-06-16 ナフタレンジカルボン酸ジメチルエステルとテレフタル酸ジメチルエステルとの分別回収方法

Publications (2)

Publication Number Publication Date
DE69407872D1 true DE69407872D1 (de) 1998-02-19
DE69407872T2 DE69407872T2 (de) 1998-08-27

Family

ID=15373847

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69407872T Expired - Lifetime DE69407872T2 (de) 1993-06-16 1994-06-13 Verfahren zur Gewinnung von Dimethylnaphthalen-2,6-dicarboxylat

Country Status (6)

Country Link
US (1) US5430174A (de)
EP (1) EP0629605B1 (de)
JP (1) JP2825733B2 (de)
AT (1) ATE162177T1 (de)
DE (1) DE69407872T2 (de)
ES (1) ES2111855T3 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100411190B1 (ko) * 1995-12-26 2004-03-26 에스케이케미칼주식회사 에틸렌글리콜의회수방법
KR100430633B1 (ko) * 1996-07-22 2004-09-08 주식회사 코오롱 폴리에틸렌테레프탈레이트및그의중합방법
DE19643479B4 (de) * 1996-10-22 2006-04-20 Zimmer Ag Verfahren zur Herstellung von Polyethylenterephthalat aus Polyethylenterephthalat-Abfall
EP0854130A1 (de) * 1997-01-15 1998-07-22 Eastman Kodak Company Rückgewinnung von Monomeren aus Polyethylennaphthalat
EP0857714A1 (de) * 1997-01-31 1998-08-12 Eastman Kodak Company Gewinnung von Monomeren aus Polyethylennaphthalat
EP0857715A1 (de) * 1997-02-03 1998-08-12 Eastman Kodak Company Wiedergewinnung von Monomeren aus Polyethylennaphthalat durch Niedrigdruckmethanolyse
TR200201101T2 (tr) 1999-10-22 2004-11-22 Teijin Limited Polyester atıktan dimetil terefitalat, etilen glikolün ayrıştırılması için yöntem
ATE226187T1 (de) * 2000-02-29 2002-11-15 Massimo Broccatelli Verfahren zur rückgewinnung von terephthalsäure aus einem poly(ethylenterephthalat)-enthaltenden material
JP2001288675A (ja) * 2000-03-31 2001-10-19 Teijin Ltd ポリアルキレンテレフタレート系繊維の減量加工方法
JP4163842B2 (ja) * 2000-04-14 2008-10-08 帝人ファイバー株式会社 ポリエチレンテレフタレートからのテレフタル酸ジメチル回収方法
US6720448B2 (en) 2000-10-11 2004-04-13 Massimo Broccatelli Method of recovering chemical species by depolymerization of poly (ethylene terephthalate) and related use
WO2012078871A2 (en) * 2010-12-08 2012-06-14 Mohanty Pravansu S Depolymerization processes, apparatuses and catalysts for use in connection therewith
CN114773192B (zh) * 2022-05-23 2023-09-26 煤炭科学技术研究院有限公司 一种连续制备2,6-萘二甲酸二甲酯切片的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS522270B2 (de) * 1973-05-30 1977-01-20
US4876378A (en) * 1988-05-23 1989-10-24 Eastman Kodak Company Recovery of dialkyl naphthalene-2,6-dicarboxylates from naphthalene-2,6-dicarboxylic acid-containing polyesters

Also Published As

Publication number Publication date
US5430174A (en) 1995-07-04
JPH072738A (ja) 1995-01-06
DE69407872T2 (de) 1998-08-27
ATE162177T1 (de) 1998-01-15
EP0629605B1 (de) 1998-01-14
EP0629605A3 (de) 1995-03-15
JP2825733B2 (ja) 1998-11-18
ES2111855T3 (es) 1998-03-16
EP0629605A2 (de) 1994-12-21

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Legal Events

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8364 No opposition during term of opposition