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Cyclohexene Epoxidation on Mn saloph/ZSM-5 Catalyst

Yang Guo-yu

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Abstract

The Schiff-base of Mn complex was encapsulated in ZSM-5 zeolite by flexible ligand route,and was characterized by FT IR,ICP,TG-DTA and BET.Its catalytic activity in the epoxidation of cyclohexene by molecular oxygen was studied,and it showed high activity.When cyclohexene was 2 mL,methylcyanide was 20 mL isobutyraldehyde was 5 mL and the catalyst was 40 mg,the conversion of cyclohexene was 96.58%,and the selectivity of epoxycyclohexane was 81.52% at 35℃.The catalyst was easy to separate and recover.

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What this paper is about

The Schiff-base of Mn complex was encapsulated in ZSM-5 zeolite by flexible ligand route,and was characterized by FT IR,ICP,TG-DTA and BET.Its catalytic activity in the epoxidation of cyclohexene by molecular oxygen was studied,and it showed high activity.When cyclohexene was 2 mL,methylcyanide was 20 mL isobutyraldehyde was 5 mL and the catalyst was 40 mg,the conversion of cyclohexene was 96.58%,and the selectivity of epoxycyclohexane was 81.52% at 35℃.The catalyst was easy to separate and recover.

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Available abstract

The Schiff-base of Mn complex was encapsulated in ZSM-5 zeolite by flexible ligand route,and was characterized by FT IR,ICP,TG-DTA and BET.Its catalytic activity in the epoxidation of cyclohexene by molecular oxygen was studied,and it showed high activity.When cyclohexene was 2 mL,methylcyanide was 20 mL isobutyraldehyde was 5 mL and the catalyst was 40 mg,the conversion of cyclohexene was 96.58%,and the selectivity of epoxycyclohexane was 81.52% at 35℃.The catalyst was easy to separate and recover.

Key concepts: Cyclohexene, Chemistry, Isobutyraldehyde, Catalysis, Cyclohexene oxide, Selectivity, Zeolite, Schiff base

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