| P/Rh比对PPh3-Rh/SiO2催化剂上丙烯氢甲酰化反应的影响 |
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| 引用本文： | 严丽,丁云杰,刘佳,朱何俊,林励吾.P/Rh比对PPh3-Rh/SiO2催化剂上丙烯氢甲酰化反应的影响[J].催化学报,2011,32(1):31-35. |
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| 作者姓名： | 严丽 丁云杰 刘佳 朱何俊 林励吾 |
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| 作者单位： | 1中国科学院大连化学物理研究所, 辽宁大连 116023; 2中国科学院大连化学物理研究所洁净能源国家实验室, 辽宁大连 116023 |
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| 基金项目： | 国家重点基础研究发展计划(973计划，国家自然科学基金 |
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| 摘 要： | 研究了P/Kh比对PPh3-Rh/SiO2催化剂上丙烯氢甲酰化反应性能的影响.结果表明,当P/Rh比为15时,丙烯氢甲酰化反应性能最好,丙烯转化率为25.9%,产物丁醛正异比为14,转换频率为241 h-1.PPh3-Rh/SiO2催化剂的固体31P核磁共振结果表明,在合成气气氛下,物理吸附的PPh3能够溢流到Rh/S...
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| 关 键 词： | 三苯基瞵 铑 二氧化硅 膦铑比 丙烯 氢甲酰化 核磁共振 |
| 收稿时间： | 2010-09-17 |
Influence of Phosphine Concentration on Propylene Hydroformylation over the PPh_3-Rh/SiO_2 Catalyst |
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| YAN Li,DING Yunjie,LIU Jia,ZHU Hejun,LIN Liwu.Influence of Phosphine Concentration on Propylene Hydroformylation over the PPh_3-Rh/SiO_2 Catalyst[J].Chinese Journal of Catalysis,2011,32(1):31-35. |
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| Authors: | YAN Li DING Yunjie LIU Jia ZHU Hejun LIN Liwu |
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| Institution: | 1Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 2Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China |
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| Abstract: | The effect of triphenyl phosphine concentration in the novel PPh3-Rh/SiO2 catalyst for propylene hydroformylation was studied and found an optimum P/Rh ratio of 15, a butyraldehyde n#/em/em# ratio of 14, a butyraldehyde TOF of 241 h-1, and high catalytic stability for PPh3-Rh/SiO2. Solid-state 31P NMR shows that in an atmosphere of syngas the physically adsorbed PPh3 migrates onto the surface of Rh/SiO2 where it chemically adsorbs and then promotes the in situ formation of carbonyl phosphine complexes. |
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| Keywords: | triphenyl phosphine rhodium silica phosphine/rhodium ratio propylene hydroformylation nuclear magnetic resonance |
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