DE69110322T2 - Verfahren zur Reinigung von Naphtalin-2,6-dicarbonsäuredimethylester. - Google Patents

Verfahren zur Reinigung von Naphtalin-2,6-dicarbonsäuredimethylester.

Info

Publication number
DE69110322T2
DE69110322T2 DE69110322T DE69110322T DE69110322T2 DE 69110322 T2 DE69110322 T2 DE 69110322T2 DE 69110322 T DE69110322 T DE 69110322T DE 69110322 T DE69110322 T DE 69110322T DE 69110322 T2 DE69110322 T2 DE 69110322T2
Authority
DE
Germany
Prior art keywords
purification
dicarboxylic acid
dimethyl naphthalene
naphthalene
dimethyl
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 - Fee Related
Application number
DE69110322T
Other languages
English (en)
Other versions
DE69110322D1 (de
Inventor
Toru Tanaka
Atsushi C O Mizushima Fa Ozaki
Masami Matsumoto
Hideaki Fujita
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 claimed from JP6275090A external-priority patent/JPH03264553A/ja
Priority claimed from JP2064041A external-priority patent/JP2906549B2/ja
Application filed by Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Publication of DE69110322D1 publication Critical patent/DE69110322D1/de
Application granted granted Critical
Publication of DE69110322T2 publication Critical patent/DE69110322T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/56—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE69110322T 1990-03-15 1991-03-15 Verfahren zur Reinigung von Naphtalin-2,6-dicarbonsäuredimethylester. Expired - Fee Related DE69110322T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6275090A JPH03264553A (ja) 1990-03-15 1990-03-15 ２，６‐ナフタリンジカルボン酸ジメチルの精製法
JP2064041A JP2906549B2 (ja) 1990-03-16 1990-03-16 ２，６―ナフタリンジカルボン酸ジメチルの精製法

Publications (2)

Publication Number Publication Date
DE69110322D1 DE69110322D1 (de) 1995-07-20
DE69110322T2 true DE69110322T2 (de) 1995-12-14

Family

ID=26403797

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69110322T Expired - Fee Related DE69110322T2 (de) 1990-03-15 1991-03-15 Verfahren zur Reinigung von Naphtalin-2,6-dicarbonsäuredimethylester.

Country Status (3)

Country Link
US (1) US5169977A (de)
EP (1) EP0447258B1 (de)
DE (1) DE69110322T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5929274A (en) * 1995-06-07 1999-07-27 Hfm International, Inc. Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid
US5767311A (en) * 1995-06-07 1998-06-16 Glitsch International, Inc. Method and apparatus for preparing purified terephtalic acid
US6013835A (en) * 1995-06-07 2000-01-11 Hfm International, Inc. Method and apparatus for preparing purified terephthalic acid
US6054610A (en) * 1995-06-07 2000-04-25 Hfm International, Inc. Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes
EP0863127B1 (de) * 1997-03-06 2002-08-28 Mitsubishi Gas Chemical Company, Inc. Verfahren zur Reinigung von Flüssigkristallen
EP0962477A3 (de) * 1998-06-04 2002-08-07 Fuji Photo Film Co., Ltd. Verfahren zur Herstellung von Polyester und Ladegerät

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517053A (en) * 1966-07-17 1970-06-23 Sun Oil Co Preparation of color-improved methyl esters of naphthalenedicarboxylic acids
US4048021A (en) * 1974-02-12 1977-09-13 Teijin Limited Method of purifying crude 2,6-naphthalenedicarboxylic acid dimethyl ester
JPS50116461A (de) * 1974-03-01 1975-09-11
SU592815A1 (ru) * 1975-12-17 1978-02-15 Предприятие П/Я М-5885 Способ очистки сложных эфиров
JP2576180B2 (ja) * 1988-03-31 1997-01-29 三菱瓦斯化学株式会社 ２，６‐ナフタレンジカルボン酸ジメチルエステルの精製法
US4886901A (en) * 1988-11-21 1989-12-12 Amoco Corporation Method for purifying a crude dimethyl naphthalene dicarboxylate

Also Published As

Publication number Publication date
DE69110322D1 (de) 1995-07-20
EP0447258B1 (de) 1995-06-14
EP0447258A3 (en) 1992-04-22
EP0447258A2 (de) 1991-09-18
US5169977A (en) 1992-12-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee