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. 02, 1997
Filed:
Dec. 26, 1995
Hideo Oikawa, Kuga-gun, JP;
Hiroshi Fukuhara, Kuga-gun, JP;
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Abstract
A method for producing aromatic carboxylic acids which comprises oxidizing a starting compound selected from the group consisting of alkyl substituted aromatic hydrocarbons and partially oxidized alkyl substituted aromatic hydrocarbons with a molecular oxygen containing gas in the presence of at least one additive selected from the group consisting of aliphatic hydrocarbons, alicyclic hydrocarbons, aliphatic alcohols, alicyclic alcohols, aldehydes, carboxylic acids and ketones and in the presence of a catalyst comprising a heavy metal compound and a bromine compound in a reaction solvent. The aliphatic alcohols, alicyclic alcohols, aldehydes, carboxylic acids and ketones have ten to thirty carbon atoms in the molecule.