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. 13, 1991
Filed:
Dec. 29, 1988
Applicant:
Inventor:
Gerhardt Horn, Oberhausen, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502260 ; 502324 ; 502325 ; 502328 ; 502332 ;
Abstract
A process for the preparation of cobalt catalysts wherein an aqueous solution of a cobalt salt is reacted with a water soluble alkali metal carbonate in the first stage. Thereafter, the mass which has been precipitated is reduced with hydrogen at a temperature between 200.degree. and 300.degree. C. to form the catalyst. In a preferred form of the invention, the raw catalyst is subjected to treatment with nitrogen gas containing a small amount of oxygen, whereby the catalyst is stabilized.