| ZrO_2/SiO_2催化柠檬醛MPV反应活性的研究 |
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| 引用本文： | 娄馨月,陈希慧,任利锋.ZrO_2/SiO_2催化柠檬醛MPV反应活性的研究[J].广西大学学报(自然科学版),2009,34(6). |
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| 作者姓名： | 娄馨月 陈希慧 任利锋 |
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| 作者单位： | 广西大学化学化工学院,广西,南宁,530004 |
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| 基金项目： | 广西自然科学基金项目 |
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| 摘 要： | 研究了用浸渍法制备的ZrO_2/SiO_2样品的比表面积,ZrO_2的晶相、样品表面酸碱性质及其催化柠檬醛MPV反应的活性.研究结果表明,ZrO_2的负载量是影响催化剂活性的主要因素之一.对于350℃焙烧的ZrO_2/SiO_2样品,当ZrO_2负载量为6.37w%时,ZrO_2/SiO_2的催化活性和目标产物的选择性达到最大(柠檬醛转化率为89.3%,不饱和醇(geraniol+nerol)的选择性为89%).
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| 关 键 词： | 柠檬醛 MPV还原 |
Catalyzing activity of ZrO_2/SiO_2 samples in Meerwein-Ponndorf-Verley reduction of citral |
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| LOU Xin-yue,CHEN Xi-hui,REN Li-feng.Catalyzing activity of ZrO_2/SiO_2 samples in Meerwein-Ponndorf-Verley reduction of citral[J].Journal of Guangxi University(Natural Science Edition),2009,34(6). |
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| Authors: | LOU Xin-yue CHEN Xi-hui REN Li-feng |
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| Abstract: | The catalytic activity of ZrO_2 /SiO_2 samples was investigated in Meerwein -Ponndorf-Ver-ley (MPV) reduction of citral with 2-propanoL These ZrO_2/SiO_2 samples were prepared by impreg-nation method. Their surtace area surface acid property and ZrO_2 crystal phase were tested. The re-suits showed that the loading of ZrO_2 on silica had important influence on the catalytic activity of these samples in the reaction. The highest activity and selectivity to the reduced alcohol, geraniol and nerol, were observed over 6. 37w% ZrO_2/SiO_2 sample calcinated at 350℃ under experiment condi-tions, more than 89% of conversion for citral and selectivity of aim product alcohol were reached. |
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| Keywords: | ZrO_2/SiO_2 ZrO_2/SiO_2 citral MPV reduction |
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