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:
Oct. 09, 2018
Filed:
Feb. 01, 2018
Applicant:
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Inventors:
Changyub Paek, Bridgewater, NJ (US);
Michael P. Lanci, Flemington, NJ (US);
Randall D. Partridge, Califon, NJ (US);
Allen W. Burton, Stewartsville, NJ (US);
Peter I. Ravikovitch, Princeton, NJ (US);
Sumathy Raman, Annandale, NJ (US);
Assignee:
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/12 (2006.01); C07C 7/13 (2006.01); B01J 20/28 (2006.01); B01J 20/18 (2006.01);
U.S. Cl.
CPC ...
C07C 7/13 (2013.01); B01J 20/18 (2013.01); B01J 20/28071 (2013.01); B01J 20/28073 (2013.01);
Abstract
In a process for separating one or more 3,3'-, 3,4′- and 4,4′-dimethyl biphenyl isomers, a feed comprising the isomers is contacted with an adsorbent containing a zeolite having a largest diffuse along dimension of at least 4 Angstroms. The adsorbents provide selective adsorption of 4,4′-dimethyl biphenyl.