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Title:
METHOD FOR PREPARING TETRACARBOXYLIC ACID AND ITS DIANHYDRIDE
Document Type and Number:
Japanese Patent JP2008201719
Kind Code:
A
Abstract:

To solve the problem of a low reaction speed in the hydrolysis of tetracarboxylic acid tetraester associated with a prior art technique, and to provide an efficient method for preparing a tetracarboxylic acid and a method for preparing a tetracarboxylic acid dianhydride.

The hydrolysis reaction of a tetracarboxylic acid ester is carried out at a high reaction speed not accomplished by a prior art technique by virtue of alkali decomposition that utilizes mechanochemistry.


Inventors:
Matsumoto, Toshihiko
Komatsu, Shinichi
Application Number:
JP2007000039543
Publication Date:
September 04, 2008
Filing Date:
February 20, 2007
Export Citation:
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Assignee:
NIPPON OIL CORP
International Classes:
C07C51/09; C07C61/125; C07C61/13; C07D493/08
Attorney, Agent or Firm:
秋元 輝雄