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. 11, 1979
Filed:
Mar. 13, 1978
Applicant:
Inventors:
Jury N Litvishkov, Baku, SU;
Medzhid R Efendiev, Baku, SU;
Ramiz G Rizaev, Baku, SU;
Khalida Y Kulieva, Baku, SU;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
2604 / ; 2604 / ;
Abstract
According to the invention, a method of producing orthoaminobenzonitrile is provided according to which ortho-toluidine is reacted with ammonia at a temperature of 360.degree.-460.degree. C. in the presence of oxygen, or a mixture thereof with inert gases, and a catalyst, namely, a mixture of oxides of antimony, bismuth, vanadium, and phosphorus taken in a weight ratio 5-12:3-9:1-9:0.5-4, respectively, the catalyst being applied to a support. The invention ensures an increase in the yield of orthoaminobenzonitrile per unit volume of the catalyst and selectivity with respect to the final product.