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:
Mar. 29, 2016
Filed:
Jun. 04, 2012
Xiaobo Zheng, Houston, TX (US);
Mark P. Hagemeister, Houston, TX (US);
Timothy P. Bender, Houston, TX (US);
Robert G. Tinger, Friendswood, TX (US);
Xiaobo Zheng, Houston, TX (US);
Mark P. Hagemeister, Houston, TX (US);
Timothy P. Bender, Houston, TX (US);
Robert G. Tinger, Friendswood, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
The invention is a process for producing paraxylene, benzene and/or toluene is alkylated with methanol in the presence of a catalyst under conditions effective to convert said benzene and/or toluene to xylene and produce a product stream containing water, xylene and one or more phenolic impurities. The said product stream is separated into a water-rich stream and a xylene-rich stream containing one or more phenolic impurities and at least a portion of the xylene-rich stream is contacted with an aqueous solution of a base under conditions to remove at least some of the phenolic impurities from the xylene-rich stream portion.