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Title:
METHOD FOR PRODUCING TRIMELLITIC ACID
Document Type and Number:
Japanese Patent JP2001354613
Kind Code:
A
Abstract:

To provide a method by which uncolored trimellitic anhydride is obtained in high yield when producing the trimellitic acid by oxidizing pseudocumene.

This method for producing the trimellitic acid is carried out by allowing the pseudocumene of an oxidation raw material to contain ≥5 wt.% dimethylbenzaldehyde.


Inventors:
TANAKA KAZUO
OGAWA HIROSHI
MARUKI IKUTARO
Application Number:
JP2000173925A
Publication Date:
December 25, 2001
Filing Date:
June 09, 2000
Export Citation:
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Assignee:
MITSUBISHI GAS CHEMICAL CO
International Classes:
B01J31/04; C07B61/00; C07C51/265; C07C63/307; (IPC1-7): C07C51/265; B01J31/04; C07C63/307
Domestic Patent References:
JPH02184652A1990-07-19
JPH1192416A1999-04-06
JPH02196751A1990-08-03
JPS5018434A1975-02-26
JPH02184652A1990-07-19
JPH1192416A1999-04-06
JPH02196751A1990-08-03
JPS5018434A1975-02-26
Foreign References:
WO1998055441A11998-12-10
WO1998055441A11998-12-10



 
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