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. 30, 1980
Filed:
Apr. 16, 1979
John N Armor, Morris Plains, NJ (US);
Allied Chemical Corporation, Morris Township, Morris County, NJ (US);
Abstract
Ammonia, oxygen e.g., as air, and a ketone react in contact with a gallium oxide catalyst at temperatures such as 50.degree.-500.degree. C., especially such catalyst obtained by heating hydrated gallium nitrate in air at about 350.degree. C. for several hours. The oximes have known utilities, including uses as oxidation inhibitors and as intermediates for production of amides. In particular, when the ketone is cyclohexanone, the cyclohexanone oxime in the reaction product can further be converted to the cyclic amide, caprolactam, e.g. by contacting the product with an aluminosilicate catalyst (treated with boric acid) having average pore diameter of at least 7 angstroms, especially a molecular sieve, suitably downstream in the same direction vessel. Caprolactam is the monomer starting material for nylon 6.