Catalytic Oxidation of Cyclohexane over ZSM-5 Catalyst in N-alkyl-N-methylimidazolium Ionic Liquids

Heterogeneous oxidation of cyclohexane by tert-butyl hydroperoxide （TBHP） was carried out over ZSM-5 catalysts with different Si/Al ratios in ionic liquids and organic molecular solvents. Higher yield and selec-tivity of the desired products were found in ionic liquids than in molecular solvents. Th...

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Bibliographic Details
Published in:Chinese journal of chemical engineering 2009-06, Vol.17 (3), p.407-411
Main Author: 胡永琪 王建英 赵瑞红 刘玉敏 刘润静 李永丹
Format: Article
Language:English
Subjects:
catalysis
cyclohexane oxidation
ionic liquid
ZSM
ZSM-5
分子筛催化剂
叔丁基过氧化氢
多相催化
有机分子
氧化环己烷
离子液体
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Summary:Heterogeneous oxidation of cyclohexane by tert-butyl hydroperoxide （TBHP） was carried out over ZSM-5 catalysts with different Si/Al ratios in ionic liquids and organic molecular solvents. Higher yield and selec-tivity of the desired products were found in ionic liquids than in molecular solvents. The conversion of cyclohexane exhibits a decrease from 15.8% to 10.8% with the increase of Si/Al ratio of the HZSM-5 catalyst, and all the cata-lysts exhibit good selectivity of monofunctional oxidation products at around 97%. The activity of catalyst is found strongly dependent on the alkyl chain length of ionic liquid.
ISSN:1004-9541
2210-321X
DOI:10.1016/S1004-9541(08)60224-4