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:
May. 25, 1976
Filed:
Apr. 15, 1975
Ronald D Bushick, Glen Mills, PA (US);
Howard P Angstadt, Media, PA (US);
Sun Ventures, Inc., Philadelphia, PA (US);
Abstract
An ammoxidation process for preparing nitriles from m- and p-xylene whereby the formation of carbon oxides is held to a minimum which comprises reacting the xylene and ammonia at a temperature of from about 375.degree.C. to about 500.degree.C. and in the presence of added oxygen, the molar ratio of ammonia to xylene being about 3:1 or less, the molar ratio of oxygen to xylene being about 3:1 or less, the volume percent concentration of the feed being preferably about 3% to 10% hydrocarbon, 7% to 20% ammonia, and 10% to 20% oxygen, and the catalyst for said reaction comprising at least about 1 to 10% by weight of a vanadium bronze supported on .alpha.-alumina.