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:
Jun. 18, 2013
Filed:
Aug. 20, 2010
Applicants:
Kenny Randolph Parker, Afton, TN (US);
Larry Wayne Blair, Gate City, VA (US);
Inventors:
Kenny Randolph Parker, Afton, TN (US);
Larry Wayne Blair, Gate City, VA (US);
Assignee:
Grupo Petrotemex, S.A. De C.V., San Pedro Garza Garcia, MX;
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/16 (2006.01); C02F 1/72 (2006.01);
U.S. Cl.
CPC ...
Abstract
The process relates improving terephthalic acid purge filtration rate by controlling % water in filter feed slurry and to the recovery of a metal catalyst from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic acid, while utilizing pressure filtration.