Patent ID: 8981158
Filing Date: 2015-03-17
Classification: C07C

Abstract:
1. An oxidation process comprising: a) contacting a composition comprising cyclohexylbenzene and oxygen in at least one oxidation zone under oxidation conditions sufficient to produce an effluent comprising (i) cyclohexylbenzene hydroperoxide; (ii) a first byproduct that is indicative of a high dissolved oxygen content in the composition; and (iii) a second byproduct that is indicative of a low dissolved oxygen content in the composition; b) determining a ratio β according to the following formula: wherein A is the amount of the first byproduct in the effluent, and B is the amount of the second byproduct in the effluent; and c) implementing an effect selected from (i) maintaining the ratio β above a threshold value; and (ii) adjusting the ratio β above a threshold value.