Abstract：In the temperature range of 100-115 ℃, a certain amount of cyclohexylbenzene hydrogen peroxide was used as the initiator, and the effects of initiator concentration and temperature on the liquid phase peroxidation of cyclohexylbenzene were investigated under the condition of excluding mass transfer. The results showed that the conversion of cyclohexylbenzene and the selectivity of cyclohexylbenzene hydrogen peroxide were greatly affected by temperature, but too much initiator could not accelerate the reaction. The free radical reaction mechanism of cyclohexylbenzene peroxidation was analyzed, and the corresponding reaction path was established. The apparent kinetic model of liquid phase peroxidation of cyclohexylbenzene was established, the model prediction results were in good agreement with the experimental data. The kinetic model parameters obtained indicated that the main reaction process for generating cyclohexylbenzene hydrogen peroxide was a zero order reaction. The research results are helpful for deepening the understanding of the mechanism of cyclohexylbenzene peroxidation, and can also provide basic parameters for the design and optimization of industrial reactors.
