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:
Jun. 28, 1988
Filed:
Feb. 18, 1986
Sargis Khoobiar, Kinnelon, NJ (US);
Arnold J Shapiro, Bronx, NY (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
Unsaturated nitriles, particularly acrylonitrile or methacrylonitrile, are produced in a process which integrates dehydrogenation of an alkane, particularly propane or isobutane, to the corresponding olefin, followed by ammoxidation of the olefin in the dehydrogenation reactor effluent to the corresponding nitrile. After recovery of the nitrile product, the residual gases are processed to remove hydrogen, oxygen, and carbon oxides, after which the gases are recycled to the dehydrogenation reactor. By operating with relatively low conversion of olefin to nitrile in each pass, the overall efficiency of the process is improved despite the need to recirculate substantial amounts of unreacted hydrocarbons.