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:
Mar. 28, 1995
Filed:
Dec. 03, 1993
Applicant:
Inventors:
Jay B Benziger, Lawrenceville, NJ (US);
Vadim Guliants, Princeton, NJ (US);
Sankaran Sundaresan, Mercerville, NJ (US);
Assignee:
The Trustees of Princeton University, Princeton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502209 ; 502353 ; 502200 ; 556 13 ; 556 14 ; 556 26 ; 549259 ;
Abstract
A vanadium/phosphorus oxide oxidation catalyst suitable for catalytic oxidation of C.sub.4 feed stock in the preparation of maleic anhydride is formed by calcining an intercalation complex of the formula VOHPO.sub.4 .multidot.0.5H.sub.2 O.multidot.({C.sub.n H.sub.2n+1 }--X).sub.z in which n has a value of from 0 to 20, z has a value of from about 1.5 to about 1.9; and X is an oxygen- or nitrogen-containing functional group operable to form hydrogen bonds with the structural P--OH and water groups of the complex.