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:
Apr. 18, 1978
Filed:
Oct. 19, 1976
Applicant:
Inventors:
James F White, Akron, OH (US);
Wilfrid G Shaw, Lyndhurst, OH (US);
Michael D Applequist, Mayfield Heights, OH (US);
Assignee:
The Standard Oil Company (Ohio), Cleveland, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; C07C / ;
U.S. Cl.
CPC ...
252437 ; 252435 ; 2605 / ;
Abstract
Methacrylic acid or acrylic acid are produced by the oxidation of methacrolein or acrolein, respectively, with molecular oxygen in the vapor phase in the presence of a catalytic oxide of molybdenum, phosphorus, arsenic, at least one element selected from the group consisting of U, Ti, Nb, Re, Pb, Zn, and Ga, oxygen, and optionally, at least one of Cu, a rare earth element, Ag, Ta, In, Th, Cd, Tl, alkaline earth metal, NH.sub.4, Cl, Ni, Al and Ge.