DE602004027202D1 - Verfahren zur Herstellung von Pyromellitsaeure - Google Patents

Verfahren zur Herstellung von Pyromellitsaeure

Info

Publication number
DE602004027202D1
DE602004027202D1 DE602004027202T DE602004027202T DE602004027202D1 DE 602004027202 D1 DE602004027202 D1 DE 602004027202D1 DE 602004027202 T DE602004027202 T DE 602004027202T DE 602004027202 T DE602004027202 T DE 602004027202T DE 602004027202 D1 DE602004027202 D1 DE 602004027202D1
Authority
DE
Germany
Prior art keywords
preparation
pyromellitic acid
pyromellitic
acid
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.)
Active
Application number
DE602004027202T
Other languages
English (en)
Inventor
Shinichi Nagao
Hiroshi Ogawa
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
Application filed by Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Publication of DE602004027202D1 publication Critical patent/DE602004027202D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
DE602004027202T 2003-10-20 2004-10-19 Verfahren zur Herstellung von Pyromellitsaeure Active DE602004027202D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003359408 2003-10-20

Publications (1)

Publication Number Publication Date
DE602004027202D1 true DE602004027202D1 (de) 2010-07-01

Family

ID=34386459

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004027202T Active DE602004027202D1 (de) 2003-10-20 2004-10-19 Verfahren zur Herstellung von Pyromellitsaeure

Country Status (5)

Country Link
US (1) US7534912B2 (de)
EP (1) EP1526124B1 (de)
KR (1) KR100990059B1 (de)
CN (1) CN100436397C (de)
DE (1) DE602004027202D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102219662B (zh) * 2011-04-27 2013-04-10 武汉万园寺药业有限公司 甲苯空气催化氧化制备苯甲醛、苯甲醇、苯甲酸苄酯的方法
CN111558230B (zh) * 2020-06-01 2021-08-31 山东明化新材料有限公司 一种偏三甲苯和均四甲苯联合蒸馏分离工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852342A (en) 1972-09-01 1974-12-03 Labofina Sa Process for the liquid phase oxidation of methylaromatic compounds into polycarboxylic acids
JPS5738745A (en) 1980-08-18 1982-03-03 Mitsubishi Gas Chem Co Inc Preparation of trimellitic acid or pyromellitic acid
US4755622A (en) 1983-12-29 1988-07-05 Amoco Corporation Process for the production of trimellitic acid and pyromellitic acid by staged bromine addition in an oxidation of polyalkylaromatics
JPS6127942A (ja) 1984-07-16 1986-02-07 Toray Ind Inc ピロメリツト酸の製造法
US5041633A (en) * 1985-10-23 1991-08-20 Amoco Corporation Process for the production of an aromatic polycarboxylic acid
JPH07116097B2 (ja) 1986-11-20 1995-12-13 三菱瓦斯化学株式会社 ピロメリツト酸の製造方法
EP0375812A1 (de) 1988-12-23 1990-07-04 Amoco Corporation Verfahren zur Herstellung einer aromatischen Polycarbonsäure
US6579990B2 (en) 2000-08-23 2003-06-17 Mitsubishi Gas Chemical Company, Inc. Process for producing refined pyromellitic acid and refined pyromellitic anhydride

Also Published As

Publication number Publication date
KR20050037950A (ko) 2005-04-25
EP1526124A1 (de) 2005-04-27
KR100990059B1 (ko) 2010-10-26
US7534912B2 (en) 2009-05-19
CN100436397C (zh) 2008-11-26
EP1526124B1 (de) 2010-05-19
US20050085663A1 (en) 2005-04-21
CN1636959A (zh) 2005-07-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition