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. 04, 1990
Filed:
Jun. 25, 1987
Applicant:
Inventors:
James M Watson, Monroe, LA (US);
David Crabbe, St. Louis, MO (US);
Thomas S Coursen, Jr, St. Louis, MO (US);
Assignee:
Columbian Chemicals Co., Cobb County, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423594 ; 423641 ; 502338 ; 502344 ; 252 6256 ; 252 626 ;
Abstract
Stable K.sub.2 Fe.sub.22 O.sub.34 in the form of lamellar platelets useful as a dehydrogenation catalyst and a method of manufacturing the same, including the steps of mixing iron oxide and a potassium compound, such as potassium carbonate, preferably in a molar ratio of Fe to K of from 3 to 6 and calcining the mixture at a temperature of at least about 900.degree. C. for at least 15 minutes.