Chapter 11

Titanosilicate-Based Alkene Epoxidation Catalysis

Changjiu Xia

Changjiu Xia

SINOPEC, Research Institute of Petroleum Processing, State Key Laboratory of Catalytic Materials and Reaction Engineering, No.18 Xueyuan road, Beijing, 100083 China

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Xiang Feng

Xiang Feng

China University of Petroleum, State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, Department of Chemical Engineering, No. 66 West Changjiang Road, Qingdao, 266580 China

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First published: 08 March 2024

Summary

Epoxides (e.g. ethylene oxide, propylene oxide, epichlorohydrin) are highly useful intermediates in the production of many chemicals, pharmaceuticals, perfumes, and polymers. The conversion of alkene into epoxides over titanosilicate zeolites is of growing importance for academic and industrial scientists. Herein, we describe recent developments in epoxidation of olefins focusing on the use of Ti-substituted zeolites catalyst. We show how the surface chemistry around the Ti sites (e.g. dispersion of Ti, coordination forms of Ti) affect the activity, selectivity, and stability in the epoxidation reaction. Finally, the industrial epoxidation of propene with hydrogen peroxide (HPPO, hydrogen peroxide propene oxide) techniques and processes is further discussed.

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