The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 1983
Filed:
Aug. 24, 1982
Applicant:
Inventors:
Assignee:
Mitsubishi Chemical Industries Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568801 ;
Abstract
A process for producing phenols from benzenemonocarboxylic acids, or their salts, esters, or anhydrides is described, comprising contacting these starting materials with molecular oxygen-containing gas and steam in a liquid phase in the presence of a copper compound, a manganese compound, and a rare earth element compound. This process can be performed either by a one-step reaction method or by a two-step reaction method. In accordance with the present process, the formation of by-products such as high boiling by-products or diphenyl ethers is inhibited and the selectivity of phenols can be greatly increased.