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:
Jul. 21, 2015
Filed:
Dec. 29, 2011
Applicants:
Alakananda Bhattacharyya, Glen Ellyn, IL (US);
Raymond C. Shih, Elgin, IL (US);
Inventors:
Alakananda Bhattacharyya, Glen Ellyn, IL (US);
Raymond C. Shih, Elgin, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 51/265 (2006.01); B01J 19/00 (2006.01); B01J 19/18 (2006.01); B01J 4/00 (2006.01);
U.S. Cl.
CPC ...
C07C 51/265 (2013.01); B01J 4/002 (2013.01); B01J 19/006 (2013.01); B01J 19/1812 (2013.01); B01J 19/1862 (2013.01); B01J 19/1875 (2013.01); B01J 2219/0004 (2013.01); B01J 2219/00006 (2013.01); B01J 2219/00166 (2013.01);
Abstract
Methods and apparatus for producing terephthalic acid using a p-xylene stream enriched with p-toluic acid are described. The apparatus includes first and second reactor zones. The reactor zones can be in the same reactor or in different reactors.