| A New Quaternary Ammonium Heteropolyoxotungstate Catalyst for Propylene Epoxidation to Propylene Oxide |
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| 作者姓名： | Ying LU Meng LI Rong Hua ZHANG Zu Wei XI Shuang GAOf Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian |
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| 作者单位： | Ying LU;Meng LI;Rong Hua ZHANG;Zu Wei XI;Shuang GAOf Dalian Institute of Chemical Physics，Chinese Academy of Sciences，Dalian 116023 |
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| 摘 要： | A new quaternary ammonium heteropolyoxotungstant (cat.C) is prepared and characterized. And the cat.C also is an reaction-controlled phase-transfer catalyst. The catalytic system of O2/EAHQ (2-ethylanthrahydroquinone)/cat.c is used for the epoxidation of propylene. Under the optimal conditions, the yield of propylene oxide based on EAHQ is 84.1%, theselectivity for propylene oxide based on propylene is 99.8% and the conversion of propylene based on EAHQ is 84.3%. The cat.c precipitates after the epoxidation reaction for easy separation. The cat. C is stable enough to be recycled three times without any loss in selectivity.
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| 关 键 词： | 丙烯 环氧化作用 相转移催化剂 季铵 杂聚氧化钨酸盐 |
A New Quaternary Ammonium Heteropolyoxotungstate Catalyst for Propylene Epoxidation to Propylene Oxide |
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| Ying LU,Meng LI,Rong Hua ZHANG,Zu Wei XI,Shuang GAOf Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian .A New Quaternary Ammonium Heteropolyoxotungstate Catalyst for Propylene Epoxidation to Propylene Oxide[J].Chinese Chemical Letters,2004,15(12):1491-1493. |
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| Authors: | Ying LU Meng LI Rong Hua ZHANG Zu Wei XI Shuang GAOf Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian |
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| Institution: | Ying LU,Meng LI,Rong Hua ZHANG,Zu Wei XI,Shuang GAOf Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023 |
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| Abstract: | A new quatemary ammonium heteropolyoxotungstant (cat.C) is prepared and
characterized. And the cat.C also is an reaction-controlled phase-transfer catalyst The catalytic
system of O_2/EAHQ (2-ethylanthrahydroquinone)/cat.c is used for the epoxidation of propylene.
Under the optimal conditions, the yield of propylene oxide based on EAHQ is 84.1%, the
selectivity for propylene oxide based on propylene is 99.8% and the conversion of propylene based
on EAHQ is 84.3%. The cat.c precipitates after the epoxidation reaction for easy separation.
The cat C is stable enough to be recycled three times without any loss in selectivity. |
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| Keywords: | Epoxidation propylene reaction-controlled phase-transfer catalyst |
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