| 硅胶负载硅钨酸催化合成丙酸正丁酯 |
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| 引用本文： | 杨水金,张思诚,邓丽芬,蔡锦凤.硅胶负载硅钨酸催化合成丙酸正丁酯[J].精细与专用化学品,2011,19(10):22-24. |
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| 作者姓名： | 杨水金 张思诚 邓丽芬 蔡锦凤 |
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| 作者单位： | 湖北师范学院化学与环境工程学院,湖北黄石,435002 |
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| 基金项目： | 湖北省自然科学基金资助项目(2005AABA053) |
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| 摘 要： | 以硅胶负载硅钨酸（H_4SiW_（12）O_（40）/硅胶）为催化剂,对以正丁醇和丙酸为原料合成丙酸正丁酯的反应条件进行了研究。较系统地研究了酸醇物质的量比、催化剂的用量、带水剂的用量、反应时间诸因素对酯收率的影响。实验表明,硅胶负载硅钨酸催化剂是合成丙酸正丁酯的良好催化剂,在n（丙酸）：n（正丁醇）=1：1.3,催化剂用量为反应物料总质量的0.88%,带水剂环己烷8mL,反应时间45min的优化条件下,丙酸正丁酯的收率可达85.4%。
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| 关 键 词： | 丙酸正丁酯 H_4SiW_（12）O_（40）/硅胶 酯化反应 催化剂 |
Catalytic synthesis of n-butyl propionate with H_4SiW_(12)O_(40)/silica gel |
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| YANG Shui-jin,ZHANG Si-cheng,DENG Li-fen,CAI Jin-feng.Catalytic synthesis of n-butyl propionate with H_4SiW_(12)O_(40)/silica gel[J].Fine and Specialty Chemicals,2011,19(10):22-24. |
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| Authors: | YANG Shui-jin ZHANG Si-cheng DENG Li-fen CAI Jin-feng |
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| Affiliation: | YANG Shui-jin,ZHANG Si-cheng,DENG Li-fen,CAI Jin-feng (College of Chemistry and Environmental Engineering,Hubei Normal University,Huangshi 435002,China) |
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| Abstract: | H_4SiW_(12)O_(40)/Silica gel was used as catalyst for the esterification of propionic acid with n-butanol. The effects of the molar ratio of alcohol to propionic acid,the amount of the catalyst,and the reaction time on synthesizing n-butyl propionate were investigated.A suitable condition for synthesizing n-butyl propionate was obtained,that is,the molar ratio of propionic acid to alcohol is 1:1.3,the mass ratio of the catalyst used to the reactants is 0.88%,the volume of cyclohexane as the water-carrying a... |
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| Keywords: | n-butyl propionate H_4SiW_(12)O_(40)/silica gel esterification catalyst |
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