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. 09, 2020
Filed:
Mar. 27, 2019
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Michael P. Lanci, Flemington, NJ (US);
Changyub Paek, Bridgewater, NJ (US);
Catherine M. Dorsi, Houston, TX (US);
ExxonMobil Research & Engineering Company, Annandale, NJ (US);
Abstract
In a process for separating dimethyl biphenyl isomers a mixture comprising one or more 3,3', 3,4′- or 4,4′-dimethyl biphenyl isomers, one or more 2,X′-dimethyl biphenyl isomers (where X=2, 3, or 4) and one or more further hydrocarbon components is contacted with a first adsorbent, thereby selectively adsorbing one or more of the dimethyl biphenyl isomers within the first adsorbent. A first raffinate stream containing less selectively adsorbed components is withdrawn from the first adsorbent and a first extract stream containing selectively adsorbed dimethyl biphenyl isomers is withdraw. The selectively adsorbed dimethyl biphenyl isomers comprise one or more of 3,3′-, 3,4′- or 4,4′-dimethyl biphenyl isomers and one or more of 2,X′-dimethyl biphenyl isomers (where X′=2, 3, or 4).