DE3675860D1 - Verfahren zur herstellung von pyromellitsaeuredianhydrid. - Google Patents

Verfahren zur herstellung von pyromellitsaeuredianhydrid.

Info

Publication number
DE3675860D1
DE3675860D1 DE8686112478T DE3675860T DE3675860D1 DE 3675860 D1 DE3675860 D1 DE 3675860D1 DE 8686112478 T DE8686112478 T DE 8686112478T DE 3675860 T DE3675860 T DE 3675860T DE 3675860 D1 DE3675860 D1 DE 3675860D1
Authority
DE
Germany
Prior art keywords
pyromellitsaeuredianhydrid
producing
producing pyromellitsaeuredianhydrid
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
DE8686112478T
Other languages
English (en)
Inventor
Tsuneo Kosaka
Yukio Sakai
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
Application granted granted Critical
Publication of DE3675860D1 publication Critical patent/DE3675860D1/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
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/56—Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation
DE8686112478T 1985-09-10 1986-09-09 Verfahren zur herstellung von pyromellitsaeuredianhydrid. Expired - Lifetime DE3675860D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60198467A JPH0676413B2 (ja) 1985-09-10 1985-09-10 無水ピロメリツト酸の製造方法

Publications (1)

Publication Number Publication Date
DE3675860D1 true DE3675860D1 (de) 1991-01-10

Family

ID=16391589

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686112478T Expired - Lifetime DE3675860D1 (de) 1985-09-10 1986-09-09 Verfahren zur herstellung von pyromellitsaeuredianhydrid.

Country Status (4)

Country Link
US (1) US4694089A (de)
EP (1) EP0215431B1 (de)
JP (1) JPH0676413B2 (de)
DE (1) DE3675860D1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5504218A (en) * 1994-04-05 1996-04-02 Nippon Shokubai Co., Ltd. Method for production pyromellitic anhydride
GB2348642B (en) * 1998-07-31 2004-03-10 Chinese Petroleum Corp Process for the preparation of pyromellitic dianhydride
JP4648515B2 (ja) * 2000-05-02 2011-03-09 株式会社日本触媒 反応器のスタートアップ方法
US6579990B2 (en) 2000-08-23 2003-06-17 Mitsubishi Gas Chemical Company, Inc. Process for producing refined pyromellitic acid and refined pyromellitic anhydride
JP2002069073A (ja) * 2000-08-23 2002-03-08 Mitsubishi Gas Chem Co Inc 高純度無水ピロメリット酸の製造方法
JP4626031B2 (ja) * 2000-08-23 2011-02-02 三菱瓦斯化学株式会社 高純度ピロメリット酸および高純度無水ピロメリット酸の製造方法
JP2004217586A (ja) * 2003-01-16 2004-08-05 Mitsubishi Gas Chem Co Inc 芳香族ポリカルボン酸及び該酸無水物の製造方法
JP4654632B2 (ja) * 2004-08-18 2011-03-23 三菱瓦斯化学株式会社 無水ピロメリット酸の製造法
JP5181436B2 (ja) * 2005-07-21 2013-04-10 三菱瓦斯化学株式会社 高純度ピロメリット酸二無水物の製造法
EP1746081B1 (de) 2005-07-21 2009-11-25 Mitsubishi Gas Chemical Company Inc. Verfahren zur Herstellung von hochreinem Pyromelliticdianhydrid
CN102911181A (zh) * 2012-11-14 2013-02-06 曹永平 一种高纯度均苯四甲酸二酐的制备方法
JP6789617B2 (ja) 2015-06-25 2020-11-25 キヤノン株式会社 カルボン酸無水物の製造方法、カルボン酸イミドの製造方法および電子写真感光体の製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937189A (en) * 1957-11-12 1960-05-17 Du Pont Production of pyromellitic dianhydride
CH536265A (de) * 1971-04-26 1973-04-30 Prolizenz Ag Verfahren zur Dehydratisierung von Pyromellithsäure
JPS4835253A (de) * 1971-09-09 1973-05-24
FR2221574A1 (en) * 1973-03-12 1974-10-11 Protex Manuf Prod Chimiq Shrink proofing and non-felting of wool - by treatment with known water-sol. cationic resins
JPS5010572A (de) * 1973-05-25 1975-02-03

Also Published As

Publication number Publication date
EP0215431B1 (de) 1990-11-28
JPS6259280A (ja) 1987-03-14
JPH0676413B2 (ja) 1994-09-28
EP0215431A3 (en) 1988-09-21
US4694089A (en) 1987-09-15
EP0215431A2 (de) 1987-03-25

Similar Documents

Publication Publication Date Title
DE3587442D1 (de) Verfahren zur herstellung von polysilsesquioxanen.
DE3678106D1 (de) Verfahren zur herstellung von cyclischen polycarbonatoligomeren.
DE3669310D1 (de) Verfahren zur herstellung von cycloolefinen.
DE3683728D1 (de) Verfahren zur herstellung von oxiracetam.
DE3575423D1 (de) Verfahren zur herstellung von heteroaryloxyacetamiden.
DE3762745D1 (de) Verfahren zur herstellung von 2-chlor-5-chlormethylthiazol.
DE3586638T2 (de) Verfahren zur herstellung von vanadylphthalocyanin.
DE3578062D1 (de) Verfahren zur herstellung von iodbenzol.
DE3675327D1 (de) Verfahren zur herstellung von 5-aethyliden-2-norbornen.
DE3784923T2 (de) Verfahren zur herstellung von enzympreparationen.
DE3763558D1 (de) Verfahren zur herstellung von 2-chlor-5-chlormethylpyridin.
DE3668316D1 (de) Verfahren zur herstellung von cycloolefinen.
DE3675860D1 (de) Verfahren zur herstellung von pyromellitsaeuredianhydrid.
DE3681500D1 (de) Verfahren zur herstellung von 2-amino-6-chloropurin.
DE3684881D1 (de) Verfahren zur herstellung von cyclopolydiorganosiloxanen.
DE3585219D1 (de) Verfahren zur herstellung von n-formyl-alpha-aspartyl-phenylalaninen.
DE3579858D1 (de) Verfahren zur herstellung von p-isobutylstyrol.
DE3575133D1 (de) Verfahren zur herstellung von 1-alkyl- oder 1-cycloalkylpiperazinen.
DE3681307D1 (de) Verfahren zur herstellung von 2-alkyl-cyclopent-2-enonen.
DE3584754D1 (de) Verfahren zur herstellung von arylalkylketonen.
DE3670075D1 (de) Verfahren zur herstellung von bis-hydroxyphenyl-n-alkanen.
DE3681340D1 (de) Verfahren zur herstellung von mono-tertiaer-butyl-toluendiamin.
DE3675817D1 (de) Verfahren zur herstellung von 2-perfluorpropoxy-perfluorpropionylfluorid.
DE3581667D1 (de) Verfahren zur herstellung von 5-deoxy-l-arabinose.
DE3674220D1 (de) Verfahren zur herstellung von 2-alkylpyrimidin.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition