Process for producing adipic acid

Details Process for producing adipic acid Process for producing adipic acid

2004-05-18

2009-02-17

Zucker, Paul A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

Reexamination Certificate

active

07491845

ABSTRACT:
It is provided to a process for producing adipic acid which comprises making a wastewater containing hydroxycaproic acid and discharged from the step of oxidizing cyclohexane with molecular oxygen in a liquid phase react with hydrogen peroxide in the presence of a tungsten catalyst in the pH range of 0 to 6.

REFERENCES:
patent: 6344586 (2002-02-01), Ichihashi et al.
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patent: 2003-201265 (2003-07-01), None
patent: 2003-201266 (2003-07-01), None
patent: 2004-217625 (2004-08-01), None
Industrial Organic Chemistry—Main Raw Materials and Intermediates—, 1stEdition, supervised a translation by Teruaki Mukaiyama, Tokyo Kagaku Dojin Co., Ltd., Dec. 1978, 14 pgs.

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