Lewis acid property and catalytic performance of MoO 3/SiO 2 for propylene epoxidation by CHP: Effects of precipitant pH value and rare earth additive

K Shen, X Liu, G Lu, Y Miao, Y Guo, Y Wang…

Index: Shen, Kai; Liu, Xiaohui; Lu, Guanzhong; Miao, Yongxia; Guo, Yanglong; Wang, Yanqin; Guo, Yun Journal of Molecular Catalysis A: Chemical, 2013 , vol. 373, p. 78 - 84

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Citation Number: 9

Abstract

High dispersed 10% MoO3/SiO2 catalysts were prepared by the sol–gel method using a precipitant (ammonium hydroxide) with different pH values, and investigated by XRD, FT-IR spectroscopy of pyridine adsorbed and Raman spectroscopy techniques, and so on. The results show that the catalytic performance of MoO3/SiO2 for the epoxidation of propylene with cumene hydroperoxide (CHP) is affected by pH value of precipitant, and MoO3/SiO2 ...