Patent ID: 9452965
Filing Date: 2016-09-27
CPC Classification: B01J,C07C,Y02P

Claim Text:
1. A process for producing phenol and/or cyclohexanone, said process comprising: (a) contacting cyclohexylbenzene with an oxygen-containing gas under conditions effective to produce an oxidation effluent containing cyclohexylbenzene hydroperoxide; (b) contacting at least part of said oxidation effluent containing cyclohexylbenzene hydroperoxide with a cleavage catalyst under conditions effective to produce a cleavage effluent containing phenol and cyclohexanone, wherein at least one of said oxidation effluent and said cleavage effluent contains at least one phenylcyclohexanol as a by-product; and (c) contacting at least part of said at least one effluent containing said at least one phenylcyclohexanol with a dehydration catalyst comprising a molecular sieve of the MCM-22 family under conditions effective to convert at least part of said phenylcyclohexanol to phenylcyclohexene.