SCI和EI收录∣中国化工学会会刊

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

• CATALYSIS, KINETICS AND REACTORS • Previous Articles     Next Articles

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. 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)

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. 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
  • 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)

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

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