Patent ID: 9162956
Filing Date: 2015-10-20
Classification: B01J,C07C

Abstract:
1. A process for preparing cyclohexanol and cyclohexanone by cyclohexane oxidation, comprising steps of: non-catalyticly oxidizing cyclohexane with molecular oxygen in the air to obtain an oxidation mixture containing cyclohexyl hydroperoxide (CHHP) as a main product; performing a homogenous catalytic decomposition of the CHHP to obtain cyclohexanol and cyclohexanone; and rectifying to obtain products of the cyclohexanol and the cyclohexanone; wherein the step of performing the homogenous catalytic decomposition of the CHHP comprises using a homogeneous catalytic decomposition reaction and distillation vessel which removes water via azeotropic rectification to reduce a water content of a decomposition liquid to be below 100 ppm.