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:
Sep. 29, 1981
Filed:
Dec. 19, 1979
Applicant:
Inventors:
James C Vartuli, West Chester, PA (US);
Lee R Zehner, Dublin, OH (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; C07D / ;
U.S. Cl.
CPC ...
252435 ; 252430 ; 252437 ; 26034675 ;
Abstract
A method for the preparation of a chromium, molybdenum or tungsten (Group VIB metal) promoted single phase vanadium(IV)bis(metaphosphate) catalyst useful for the vapor phase oxidation of hydrocarbons and particularly the oxidation of linear C.sub.4 unsaturated olefins to prepare maleic anhydride.