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. 02, 1982
Filed:
Dec. 15, 1980
Applicant:
Inventor:
Hsin H Hsieh, Baton Rouge, LA (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
252428 ; 252430 ; 252432 ; 2603 / ;
Abstract
A catalyst for the oxidation of phenols to 1,4-benzoquinones in the gas phase with an oxygen containing gas such as air, substantially pure oxygen, or mixtures thereof. The composition of the catalyst comprises vanadium pentoxide or ammonium metavanadate, the sulfate salt of an alkali metal or of ammonia, the pyrosulfate salt of an alkali metal or of ammonia, an iron sulfate, boric acid, and silica.
Hsieh, Hsin. (1982). Catalytic oxidation of phenols to 1,4-benzoquinones (U.S. Patent No. 4317745). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4317745
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile