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:
Oct. 29, 1975
Applicant:
Inventor:
Alan F Dickason, Chester, PA (US);
Assignee:
Suntech, Inc., St. Davids, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ; 252432 ; 252474 ; 252476 ;
Abstract
In the process of making 2,6-dicyanonaphthalene by reacting 2,6-dimethylnaphthalene, ammonia and oxygen under ammoxidation conditions at atmospheric pressure, the improvement which comprises carrying out said ammoxidation in the presence of an unsupported alkali-metal vanadium bronze catalyst, optionally promoted with titanium, boron or iron and with a molar ratio of ammonia to 2,6-dimethylnaphthalene of at least about 25:1.