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. 28, 1999
Filed:
Oct. 09, 1997
Applicant:
Inventors:
Philipp Rosendorfer, Neustadt, DE;
Peter Eck, Bad Durkheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502319 ; 502319 ; 502150 ; 502151 ; 502152 ; 502171 ;
Abstract
Supported chromium catalysts are prepared by loading the support material with chromium compounds and calcining at from 400 to 1100.degree. C., and then treating the catalyst with a water-containing inert gas mixture.