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:
Sep. 13, 2016
Filed:
Jan. 13, 2014
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Terry E. Helton, Bethlehem, PA (US);
Robert G. Tinger, Friendswood, TX (US);
Lu Han, Herndon, VA (US);
Andrea P. Wight, Huffman, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
In a process for producing para-xylene, benzene and/or toluene is alkylated with methanol in the presence of a catalyst under conditions including a temperature of at least 500° C. and an HO partial pressure of at least 12 psia (83 kPaa). The catalyst comprises from 5 to 15 wt % ZSM-5, phosphorus or a compound thereof and a binder and has been steamed at a temperature of at least 900° C. The steamed catalyst has no more than two peaks in theP MAS NMR spectrum in the range of 0 to −50 ppm.