In order to screen one suitable catalyst for magnetically stabilized fluidized bed (MSFB) reactor in the process of oxidative carbonylation of phenol to diphenyl carbonate (DPC), Pd/MnFe2O4 catalysts were chosen, then prepared and characterized by XRD, H2-TPR, O2-TPD and VSM. Compared to the other metal ion doped spinel ferrite catalysts, the catalytic activity of Pd/10% PbO-MnFe2O4 was much higher, which the single pass yield of DPC reached 33.12% with selectivity above 99%, and TOF (turnover frequency) reached 70.56 molDPC·(molPd h)-1. The result showed that the formation of the ferrite oxygen-deficient and ion transference in the ferrites was in favor of the catalytic activity. When the support MnFe2O4 was calcinated at 500 °C, the saturation magnetization of the obtained catalyst Pd/10% PbO-MnFe2O4 came up to 37.81 Am2 kg-1. With good magnetic property and brilliant catalytic activity the catalyst Pd/PbO-MnFe2O4 may suite for industrial experiments in MSFB reactor in future.
Zhang, L., He, Y., Yang, X., Yuan, H., Du, Z., & Wu, Y. (2015). Oxidative carbonylation of phenol to diphenyl carbonate by Pd/MO-MnFe2O4 magnetic catalyst. Chemical Engineering Journal, 278, 129–133. https://doi.org/10.1016/j.cej.2014.11.096