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:
Oct. 19, 1976
Filed:
May. 12, 1975
Applicant:
Inventor:
David S Barmby, Media, PA (US);
Assignee:
Sun Ventures, Inc., St. Davids, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
2604 / ; 252416 ; 252464 ; 252476 ;
Abstract
In an ammoxidation system where hydrocarbon, oxygen and ammonia are reacted at a temperature of from about 375.degree.C. to about 450.degree.C. in the presence of a vanadium bronze catalyst, the improvement of regenerating heat damaged catalyst by cooling the catalyst to below about 400.degree.C. and then reheating it to a temperature of from about 510.degree.C. to about 530.degree.C. in the presence of oxygen.