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:
May. 12, 1987
Filed:
Aug. 27, 1986
Applicant:
Inventors:
Hiroshi Ichihashi, Niihama, JP;
Hiroshi Yoshioka, Niihama, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585267 ; 585266 ; 585273 ; 585276 ;
Abstract
A method for producing cycloolefins, useful as an intermediate for lysine, caprolactam, adipic acid etc., by the partial hydrogenation of corresponding aromatic hydrocarbons with a hydrogen gas in the presence of water and a catalyst comprising barium sulfate as a carrier and ruthenium and one or more metals selected from the group consisting of iron, cobalt, silver and copper supported on the carrier, characterized by incorporating one or more metal oxides selected from the group consisting of silicon dioxide, titanium dioxide and aluminum oxide in the reaction system.