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CAPLUS COPYRIGHT 2011 ACS
||Process for producing cyclohexylbenzene A
||Chen, Tan-Jen; Cheng, Jane C.; Helton, Terry E.; Buchanan; John Scott
||ExxonMobil Chemical Patents Inc., USA
||Eur. Pat. Appl., 10pp. CODEN: EPXXDW
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.
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