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. 15, 1984
Filed:
Aug. 26, 1982
Applicant:
Inventors:
Noel J Bremer, Kent, OH (US);
Dennis E Dria, Cleveland Heights, OH (US);
Andrew M Weber, Bedford Heights, OH (US);
Assignee:
The Standard Oil Company, Cleveland, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502209 ; 502211 ;
Abstract
Vanadium phosphorus mixed oxide containing catalysts are prepared in an organic liquid reaction medium with heating wherein at least 1.5 moles organic liquid are removed from the reaction medium such as by distillation for each mole of vanadium which is reduced or reacted during such reaction and/or reduction. The resulting catalysts are useful for the production of maleic anhydride from 4 carbon atom hydrocarbons.