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:
Aug. 21, 1979
Filed:
Mar. 17, 1978
Applicant:
Inventors:
Hiromichi Ishii, Yamaguchi, JP;
Hideo Matsuzawa, Yamaguchi, JP;
Masao Kobayashi, Yamaguchi, JP;
Masaaki Kato, Yamaguchi, JP;
Assignee:
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
252412 ; 252416 ; 2606 / ; 562545 ;
Abstract
A phosphorus-molybdenum-alkali metal-containing catalyst for the gas-phase oxidation of an unsaturated aldehyde to an unsaturated carboxylic acid is regenerated by treating it with an aqueous solution containing ammonia and hydrogen peroxide or ozone.