| 玻璃球负载纳米级SO2-4/TiO2固体超强酸催化合成丙酸苄酯 |
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| 引用本文： | 魏 青,张 萍,刘占荣,刘树彬.玻璃球负载纳米级SO2-4/TiO2固体超强酸催化合成丙酸苄酯[J].河北科技大学学报,2009,30(2):109-111,115. |
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| 作者姓名： | 魏 青 张 萍 刘占荣 刘树彬 |
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| 作者单位： | 石家庄学院化工学院; |
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| 摘 要： | 用玻璃球负载纳米级SO4^2-／TiO2固体超强酸催化合成丙酸苄酯，对丙酸苄酯的合成条件和催化剂的重复使用效果进行了研究。在最佳反应条件下，丙酸的转化率为97．5％。实验还表明，该催化剂对丙酸和苄醇的酯化反应在重复使用5次后，反应3．0h时丙酸的转化率变为90．3％，催化产物的气相色谱说明该催化剂选择性好，无副产物生成，是合成丙酸苄酯的良好催化剂，具有较好的应用前景。
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| 关 键 词： | 纳米级SO42-/TiO2 固体超强酸 催化 丙酸苄酯 |
| 收稿时间： | 2009/2/18 0:00:00 |
| 修稿时间： | 2009/4/1 0:00:00 |
Catalytic synthesis of benxyl propinate with crystal ball supported nano-sized SO_4~(2-)/TiO_2 solid superacid |
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| WEI Qing,ZHANG Ping,LIU Zhan-rong and LIU Shu-bin.Catalytic synthesis of benxyl propinate with crystal ball supported nano-sized SO_4~(2-)/TiO_2 solid superacid[J].Journal of Hebei University of Science and Technology,2009,30(2):109-111,115. |
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| Authors: | WEI Qing ZHANG Ping LIU Zhan-rong and LIU Shu-bin |
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| Institution: | Department of Chemical Engineering;Shijiazhuang College;Shijiazhuang Hebei 050035;China |
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| Abstract: | The synthesis of benxyl propinate with the crystal ball supported nano-sized SO2-4/TiO2 solid superacid as catalysts was studied,including esterification conditions and effect of repeated use of the catalyst.Under optimum synthesis condition,the conversion rate of propionic acid is 97.5%.As a result,after the catalyst is used repeatedly for five times(3.0 h one time),the 3.0 h conversion rate of propionic acid becomes down to 90.3% for the esterificational reaction of propionic acid and alpha-hydroxytoluene... |
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| Keywords: | nano-sized SO2-4/TiO2 solid super acid catalytic benxyl propinate |
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