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:
Feb. 22, 1994
Filed:
Oct. 09, 1992
Wilfrid G Shaw, Lyndhurst, OH (US);
Kenneth L Bigler, Aurora, OH (US);
Louis R Trott, Solon, OH (US);
Steve J Miko, Hudson, OH (US);
Vincent G Reiling, Shaker Heights, OH (US);
Michael J Seely, Twinsburg, OH (US);
Dev D Suresh, Hudson, OH (US);
Maria S Friedrich, Lyndhurst, OH (US);
Paul E Bott, Victoria, TX (US);
Edward J Sockell, Port Lavaca, TX (US);
Albert R Shuki, Jr, Sagamore Hills, OH (US);
Kenneth P Keckler, Lima, OH (US);
Frank J Kojancic, Independence, OH (US);
The Standard Oil Company, Cleveland, OH (US);
Abstract
A process for the substantial or complete elimination of ammonium sulfate generated during the production of acrylonitrile by the direct ammoxidation of propylene/propane, ammonia and an oxygen containing gas (e.g. air) over a fluid bed catalyst wherein the improvement comprises introducing an organic compound(s) into said reactor at a location where the compound(s) reacts with substantially all of the excess ammonia without affecting the acrylonitrile yield. Preferably, the organic compound is methanol which is introduced into the reactor at below its coking temperature.