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

›› 2009, Vol. 17 ›› Issue (3): 407-411.

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

胡永琪¹, 王建英¹, 赵瑞红¹, 刘玉敏¹, 刘润静¹, 李永丹²

1. School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018 China;
2. Tian jin,Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, China

收稿日期:2008-10-20 修回日期:2009-02-27 出版日期:2009-06-28 发布日期:2009-06-28
通讯作者: HU Yongqi,E-mail:yongqi_h@yahoo.com.cn
基金资助:
Supported by the National Natural Science Foundation of China (20776037, 20425619);the Program for Changjiang Scholars and Innovative Research Teams in Universities (IRT0641);the Research Foundation of Hebei University of Science and Technology (XL200716)

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

HU Yongqi¹, WANG Jianying¹, ZHAO Ruihong¹, LIU Yumin¹, LIU Runjing¹, LI Yongdan²

1. School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018 China;
2. Tian jin,Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, China

Received:2008-10-20 Revised:2009-02-27 Online:2009-06-28 Published:2009-06-28
Supported by:
Supported by the National Natural Science Foundation of China (20776037, 20425619);the Program for Changjiang Scholars and Innovative Research Teams in Universities (IRT0641);the Research Foundation of Hebei University of Science and Technology (XL200716)

摘要/Abstract

摘要： 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 selectivity 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 catalysts 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.

关键词: ionic liquid, cyclohexane oxidation, ZSM-5, catalysis

Abstract: 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 selectivity 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 catalysts 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.

Key words: ionic liquid, cyclohexane oxidation, ZSM-5, catalysis

胡永琪, 王建英, 赵瑞红, 刘玉敏, 刘润静, 李永丹. Catalytic Oxidation of Cyclohexane over ZSM-5 Catalyst in N-alkyl-N-methylimidazolium Ionic Liquids[J]. , 2009, 17(3): 407-411.

HU Yongqi, WANG Jianying, ZHAO Ruihong, LIU Yumin, LIU Runjing, LI Yongdan. Catalytic Oxidation of Cyclohexane over ZSM-5 Catalyst in N-alkyl-N-methylimidazolium Ionic Liquids[J]. , 2009, 17(3): 407-411.

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

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

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