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:
Aug. 21, 1984
Filed:
Jul. 21, 1983
Applicant:
Inventors:
Imre Puskas, Glen Ellyn, IL (US);
David E James, Batavia, IL (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562487 ; 502185 ; 502230 ; 562485 ;
Abstract
A catalyst and process for purifying crude terephthalic acid wherein the catalyst is prepared by contacting a carbonaceous support with an aqueous solution of sodium tetranitropalladate.