Patent ID: 9586898
Date: 2017-03-07
CPC Classifications: C07C,C07D,C08G,Y02P

Claim:
1. A process for oxidizing a feed comprising cyclohexylbenzene, the process comprising: contacting the feed with oxygen and an oxidation catalyst in a plurality of reaction zones connected in series, wherein the contacting in at least two of the plurality of reaction zones is conducted under conditions effective to oxidize a portion of the cyclohexylbenzene to cyclohexylbenzene hydroperoxide, and at least one of the plurality of reaction zones has a different reaction condition than another of the plurality of reaction zones; wherein the different reaction condition includes both: (i) a temperature decrease and (ii) an increase in oxidation catalyst concentration in the feed from at least one of the plurality of reaction zones to the next of the plurality of reaction zones in the series.