Highly Efficient Synthesis of Epichlorohydrin by Epoxidation of Allyl Chloride over Titanosilicate Ti-MWW

Abstract

Abstract: Liquid-phase epoxidation of allyl chloride with hydrogen peroxide was carried out over Ti-MWW, a novel titanosilicate with the MWW structure, to synthesize epichlorohydrin selectively and effectively. Ti-MWW proved to be superior to the conventional TS-1 catalyst in both catalytic activity and product selectivity. Ti-MWW prefers aprotic solvents of acetone and acetonitrile, both of which can restrain the solvolysis of epichlorohydrin, whereas TS-1 favors a protic solvent of methanol. It is possible to achieve the conversion of allyl chloride and selectivity for epichlorohydrin as high as 99% on Ti-MWW.

Key words: titanosilicate, Ti-MWW, TS-1, allyl chloride, epoxidation, epichlorohydrin

WANG Lingling, LIU Yueming, ZHANG Haijiao, WU Haihong, JIANG Yongwen, WU Peng*, HE Mingyuan. Highly Efficient Synthesis of Epichlorohydrin by Epoxidation of Allyl Chloride over Titanosilicate Ti-MWW[J]. Chinese Journal of Catalysis, 2006, 27(8): 656-658.

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Highly Efficient Synthesis of Epichlorohydrin by Epoxidation of Allyl Chloride over Titanosilicate Ti-MWW

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