October 28, 2013

CAS databases provide millions of journal article references from more than 10,000 major scientific journals worldwide, patent and patent family references from 63 patent authorities around the world, and other reputable web sources.

The following patent record is from the CAplusSM database.


Patent Number: US 8519208
Title: Processes for synthesizing ethylbenzene from ethanol and benzene
Inventor(s): Yang, Weimin; Sun, Hongmin; Liu, Wenjie; Zhang, Bin; Shen, Zhenhao; Huan, Mingyao; Zhang, Hongyu
Patent Assignee(s): China Petroleum & Chemical Corporation, Peop. Rep. China; Shanghai Research Institute of Petrochemical Technology, Sinopec
Source: U.S. Pat. Appl. Publ., 13pp. CODEN: USXXCO
Language: English

Processes for catalytically synthesizing ethylbenzene from ethanol and benzene comprises (1) reacting a first mixt. comprising ethanol and benzene with at least one catalyst chosen from binder-contg. alkylation catalysts and binder-free alkylation catalysts in an alkylation reactor to form a second mixt. comprising residual benzene, ethylbenzene, diethylbenzene, and water; (2) passing the second mixt. successively through a benzene recovery tower, an ethylbenzene recovery tower, and a polyethylbenzene recovery tower to give sepd. water, sepd. benzene, sepd. ethylbenzene, and sepd. diethylbenzene; and (3) reacting a third mixt. with at least one transalkylation catalyst in a transalkylation reactor, wherein the third mixt. comprises at least some of the sepd. benzene and at least some of the sepd. diethylbenzene at ratio 2:1-10:1.

Please note:  Abstracts and Titles for patent records in CAplus are routinely enhanced to better describe the claimed invention.

 View the full-text here.

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