April 4, 2011

CAS databases provide millions of journal article references from more than 10,000 major scientific journals worldwide, patent and patent family references from 61 patent authorities around the world, and other reputable web sources.

The following patent record is from the CAplusSM database.

CAPLUS COPYRIGHT 2011 ACS

Patent Number: US 7910779
Title: Process for producing cyclohexylbenzene A
Inventor(s): Chen, Tan-Jen; Cheng, Jane C.; Helton, Terry E.; Buchanan; John Scott
Patent Assignee(s): ExxonMobil Chemical Patents Inc., USA
Source: Eur. Pat. Appl., 10pp. CODEN: EPXXDW
Language: English
Abstract:
Cyclohexylbenzene is prepared by the steps, (a) feeding benzene and hydrogen to at least one reaction zone; (b) contacting the benzene and hydrogen in said at least one reaction zone under hydroalkylation conditions with a catalyst system comprising an aluminosilicate mol. sieve having an X-ray diffraction pattern including d spacing maxima at 12.4+0.25, 6.9+0.15, 3.57+0.07 and 3.42+0.07 Angstrom, and at least one hydrogenation metal to produce an effluent containing cyclohexylbenzene, wherein the catalyst system  has an acid-to-metal molar ratio of from 75 to 750.

View the full-text patent from USPTO.

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