Reaction Behavior for Synthesis of Methyl Ethyl Ketone Oxime Catalyzed by Titanosilicate/H2O2 Systems

Abstract

Abstract: In the preparation process of oxime over the titanosilicate/H₂O₂ system, the reaction performance of oxime influenced the efficiency and stability of the process directly. The reaction behavior of methyl ethyl ketone oxime produced from ammoximation of methyl ethyl ketone catalyzed by the Ti-MWW/H₂O₂ system was studied.The Ti-MWW and H₂O₂together resulted in the hydrolysis of methyl ethyl ketone oxime to methyl ethyl ketone, NO_x, etc. Thus, the system was from alkalescence to acidity. The same phenomena also existed in the TS-1/H₂O₂ system for cyclohexanone oxime production. This experimental result was beneficial for the increase of the efficiency and the stability of the process over the titanosilicate/H₂O₂ system.

Key words: itanosilicate molecular sieve, hydroperoxide, methyl ethyl ketone, methyl ethyl ketone oxime, cyclohexanone, cyclohexanone oxime, hydrolysis

YANG Junxia;YAO Mingkai;ZHAO Song;LIU Yueming*;WU Peng;HE Mingyuan. Reaction Behavior for Synthesis of Methyl Ethyl Ketone Oxime Catalyzed by Titanosilicate/H2O2 Systems[J]. Chinese Journal of Catalysis, 2010, 31(1): 95-99.

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https://www.cjcatal.com/EN/Y2010/V31/I1/95

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Reaction Behavior for Synthesis of Methyl Ethyl Ketone Oxime Catalyzed by Titanosilicate/H2O2 Systems

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