Effects of Feeding Mode and Substrate Concentration on the Cyclohexanone Ammoximation over Ti-MWW Catalysts

Chinese Journal of Catalysis ›› 2006, Vol. 27 ›› Issue (7): 562-566.

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Effects of Feeding Mode and Substrate Concentration on the Cyclohexanone Ammoximation over Ti-MWW Catalysts

SONG Fen, LIU Yueming, WANG Lingling, ZHANG Haijiao, WU Haihong, WU Peng*, HE Mingyuan

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry,East China Normal University, Shanghai 200062, China

Received:2006-07-25 Online:2006-07-25 Published:2006-07-25

Abstract

Abstract: The liquid-phase ammoximation of cyclohexanone with ammonia and hydrogen peroxide was conducted over the Ti-MWW catalyst. The operating conditions of the reaction, especially the feeding mode of H2O2 greatly affected the catalytic performance of Ti-MWW. In addition, the concentration of H2O2 also affected the ammoximation reaction. Under the optimum reaction conditions, the cyclohexanone conversion and oxime selectivity were both over 99%.

Key words: titanosilicate zeolite, Ti-MWW zeolite, TS-1 zeolite, cyclohexanone, cyclohexanone oxime, liquid-phase ammoximation

SONG Fen, LIU Yueming, WANG Lingling, ZHANG Haijiao, WU Haihong, WU Peng*, HE Mingyuan. Effects of Feeding Mode and Substrate Concentration on the Cyclohexanone Ammoximation over Ti-MWW Catalysts[J]. Chinese Journal of Catalysis, 2006, 27(7): 562-566.

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Effects of Feeding Mode and Substrate Concentration on the Cyclohexanone Ammoximation over Ti-MWW Catalysts

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