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.:

US 9586873 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 07, 2017

Filed:

Jun. 03, 2014
Applicant:

King Fahd University of Petroleum and Minerals, Dhahran, SA;

Inventors:

Sulaiman Saleh Al-Khattaf, Dhahran, SA;

Syed Ahmed Ali, Dhahran, SA;

Abdullah Mohammed Aitani, Al-Khobar, SA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 2/86 (2006.01); C07C 6/12 (2006.01);
U.S. Cl.
CPC ...
C07C 2/864 (2013.01); C07C 6/123 (2013.01); C07C 2529/40 (2013.01);
Abstract

A method is disclosed for selective simultaneous production of para-xylene, para-ethyltoluene and para-diethylbenzene from a reactant stream containing ethylbenzene and methanol, as an alkylating agent. The process comprises alkylation of the feedstock in a fluidized-bed rector under alkylating conditions, over a modified ZSM-5-based catalyst to produce streams containing above 95% para-isomers of dialkylbenzenes. The method also includes the steps of multilayer silylation to achieve simultaneous selectivity of the para-isomers of dialkylbenzenes.


Find Patent Forward Citations

Al-Khattaf, Sulaiman. (2017). Method for the selective production of para-dialkylbenzenes (U.S. Patent No. 9586873). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9586873

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