引用本文:
郑岩, 赵继全, 葛凤燕, 李亚玲. 胶囊化Ni(acac)2·2H2O对环己烯环氧化催化性能的研究[J]. 应用化学,
2003, 20(5): 470-473.
Citation: ZHENG Yan, ZHAO Ji-Quan, GE Feng-Yan, LI Ya-Ling. Catalytic Epoxidation of Cyclohexene over Encapsulated Ni(acac)2·2H2O Catalysts[J]. Chinese Journal of Applied Chemistry, 2003, 20(5): 470-473.
Citation: ZHENG Yan, ZHAO Ji-Quan, GE Feng-Yan, LI Ya-Ling. Catalytic Epoxidation of Cyclohexene over Encapsulated Ni(acac)2·2H2O Catalysts[J]. Chinese Journal of Applied Chemistry, 2003, 20(5): 470-473.
胶囊化Ni(acac)2·2H2O对环己烯环氧化催化性能的研究
English
Catalytic Epoxidation of Cyclohexene over Encapsulated Ni(acac)2·2H2O Catalysts
Abstract:
Ni(acac)2·2H2O was encapsulated in SiO2 by a Sol-gel method and used in epoxidation of cyclohexene.The catalysts were characterized by FT-IR spectroscopy and BET.The best encapsulation conditions were pH=3,n(H2O)/n(Si)=6,drying temperature 80℃.The activity of the encapsulated Ni(acac)2 catalyst decreased not much after 3 experiments.The prepared encapsulated catalyst has the advantages of avoiding corrosion of apparatus,regeneration and high yield of epoxide of cyclohexene (ECH) as compared with encapsulated Fe(acac)3 and Co(acac)2·2H2O.
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Key words:
- cyclohexene
- / epoxidation
- / nickel(Ⅱ)acetyacetonate
- / encapsulated catalysts
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