Title:
脂環式多価カルボン酸の製造方法
Document Type and Number:
Japanese Patent JP6524693
Kind Code:
B2
Abstract:
The present invention provides a method for producing an alicyclic polycarboxylic acid capable of keeping the heat removal performance of a reaction mixture stable and obtaining stable reaction results over an extended period of time. In this method for producing an alicyclic polycarboxylic acid, the aromatic nucleus of an aromatic polycarboxylic acid is hydrogenated in an aqueous medium, and a corresponding alicyclic polycarboxylic acid is continuously produced, wherein the reaction temperature is controlled by adjusting the temperature of the raw material mixture fed to the reactor; in particular, the reaction temperature is 100-200ºC, and the temperature of the raw material mixture fed to the reactor is 40ºC to 120ºC lower than the reaction temperature.
Inventors:
Yoshiyuki Tanaka
Hiroya Kagawa
Hiroya Kagawa
Application Number:
JP2015031030A
Publication Date:
June 05, 2019
Filing Date:
February 19, 2015
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C07C51/36; C07C61/09
Domestic Patent References:
| JP2002255895A | ||||
| JP58198439A | ||||
| JP6184041A |
Other References:
赤羽利昭,別冊化学工業23-1 バッチプラントとエンジニアリング,株式会社化学工業社,1979年,第133-138頁,特に第135頁右欄第10行-第137頁左欄第4行参照