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:
Sep. 19, 1995
Filed:
Feb. 24, 1994
Applicant:
Inventor:
Fawzy G Sherif, Stony Point, NY (US);
Assignee:
Akzo Nobel N.V., Arnhem, NL;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502177 ; 423352 ; 4234 / ; 423439 ; 423440 ; 423441 ; 423442 ;
Abstract
A process for forming a metal carbide catalyst, for example, a Group VIB transition metal carbide, such as tungsten carbide, which may be on a support, which process comprises the calcination of a precursor comprising a water soluble salt of: (1) a cation comprising nitrogen-hydrogen bonded moieties, such as a guanidine cation; and (2) an anion, such as a tungstate anion, comprising metal-oxygen bonded moieties, so that upon calcination the product formed is the metal carbide and the by-products comprise ammonia and carbon dioxide.