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:
Dec. 03, 1985
Filed:
Jan. 06, 1984
Applicant:
Inventors:
Tomiya Isshiki, Tokyo, JP;
Yasuhiko Kijima, Chiba, JP;
Yuh Miyauchi, Chiba, JP;
Takao Kondo, Tokyo, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260549 ; 560232 ;
Abstract
A process for producing acetic anhydride which comprises reacting methyl acetate or dimethyl ether with carbon monoxide in the presence of a catalyst comprising (a) nickel or a nickel compound and (b) at least one halide selected from the group consisting of bromides, iodides and mixtures thereof, and together with a specific co-catalyst which is disclosed. According to this invention acetic anhydride is produced by using highly active non-expensive catalyst and co-catalyst.