LIU Xiaoli, ZHANG Yuecheng, GAO Yu, ZHAO Jiquan

(School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China)

Abstract: A bipyridyl methyltrioxorhenium (MTO) complex was supported onto the surface of MCM-41 by a multi-step grafting method. The resulting supported MTO catalyst was characterized by FT-IR, DR UV-Vis, EA, AAS, XRD and nitrogen adsorption. The material was used as catalyst in the epoxidation of cylcohexene, styrene and 1-octanene with hydrogen peroxide and UHP as oxidants, respectively. Catalytic study results indicated that the heterogenized methyltrioxorhenium catalyst displayed highly active and selective performances when applied to the epoxidation of alkenes in general, but poor performance in the case of recycle run.

Key words: MCM-41; Methyltrioxorhenium; heterogenization; cyclohexene; epoxidation

E-mail: liuxiaoli72@hebut.edu.cn 

Journal of Molecular Catalysis, Vol. 26, Issue 3, 2012,239-245