一种催化碳酸二甲酯与苯酚酯交换合成碳酸二苯酯的多相催化剂

A Heterogeneous Catalyst for the Transesterification of Dimethyl Carbonate and Phenol to Form Diphenyl Carbonate

The SiO2-supported Cu 3/2PMo 12O 40 catalyst was prepared by impregnating SiO2 with the solution of Cu 3/2PMo 12O 40. The catalyst was used for the transesterification of dimethyl carbonate and phenol to form diphenyl carbonate, and the effect of the Cu 3/2PMo 12O 40 loading and calcination temperature on the catalytic performance was investigated. The optimum Cu 3/2PMo 12O 40 loading was 26%, and the best calcination temperature was 400 ℃. Under the conditions of 175 ℃ and 8 h, the phenol conversion and the transesterification selectivity over 22%Cu 3/2PMo 12O 40/SiO2 calcined at 400 ℃ were 25% and 99.2%, respectively.

The SiO2-supported Cu3/2PMo12O40 catalyst was prepared by impregnating SiO2 with the solution of Cu3/2PMo12O40. The catalyst was used for the transesterification of dimethyl carbonate and phenol to torm diphenyl carbonate, and the effect of the Cu3/2PMo12O40 loading and calcination temperature on the catalytic performance was investigated. The optimum Cu3/2PMo12O40 loading was 26 %, and the best calcination temperature was 400℃. under the conditions of 175℃ and 8 h, the phenol conversion and the transesterification selectivity over 22%Cu3/2PMo12O40/SiO2 calcined at 400℃ were 25 % and 99.2 % , respectively.