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. 27, 1977
Filed:
Aug. 13, 1976
Applicant:
Inventors:
John D Bacha, Monroeville, PA (US);
Joseph S Matthews, Pittsburgh, PA (US);
Charles M Selwitz, Monroeville, PA (US);
Assignee:
Gulf Research & Development Company, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
26034675 ;
Abstract
A process for producing maleic anhydride from a hydrocarbon mixture containing C.sub.5 monoolefinic hydrocarbons, C.sub.5 diolefinic hydrocarbons, (cyclic and acylic) C.sub.5 paraffins, C.sub.6 paraffins and benzene which involves separating the C.sub.5 cyclic diolefinic hydrocarbons from the mixture and then reacting the resulting mixture with molecular oxygen in vapor phase in the presence of an oxidation catalyst at elevated temperatures.