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:
Nov. 07, 2017
Filed:
Oct. 18, 2016
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Brian M. Weiss, Bridgewater, NJ (US);
Darryl D. Lacy, Easton, PA (US);
Scott J. Weigel, Allentown, PA (US);
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 5/27 (2006.01); C07C 4/18 (2006.01);
U.S. Cl.
CPC ...
C07C 5/2737 (2013.01); C07C 4/18 (2013.01); C07C 2529/40 (2013.01); C07C 2529/70 (2013.01);
Abstract
A process for the isomerization of a para-xylene depleted, meta-xylene rich stream under at least partially liquid phase conditions using ZSM-23 with an external surface area of at least 75 m/g (indicating a small crystallite size), and a SiO/AlOratio between 15 and 75 that produces a higher than equilibrium amount of para-xylene, i.e., more than about 24 wt % of para-xylene, based on the total amount of xylenes.