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| 纳米H3PW12O40／SiO2复合杂多酸催化合成琥珀酸二丁酯的研究 | |
| 引用本文： | 邓斌,章爱华,徐安武.纳米H3PW12O40／SiO2复合杂多酸催化合成琥珀酸二丁酯的研究[J].化工中间体,2008,4(11):73-76. |
| 作者姓名： | 邓斌 章爱华 徐安武 |
| 作者单位： | 1. 湘南学院化学与生命科学系,湖南,郴州,423000;中国科技大学合肥微尺度物质科学国家实验室,安徽,合肥,230026 2. 吉首大学化学化工学院,湖南,吉首,416000 3. 中国科技大学合肥微尺度物质科学国家实验室,安徽,合肥,230026 |
| 摘 要： | 以纳米级H3PW12O4/MSiO2复合杂多酸为催化剂，琥珀酸和正丁醇为原料，甲苯为带水剂，合成琥珀酸二丁酯。实验结果表明，纳米H3PW12O40／SiO2复合杂多酸是合成琥珀酸二丁酯的良好催化剂，适宜的工艺合成条件为：琥珀酸用量为．1mol时，醇酸摩尔比为3．0：1．催化剂用量为琥珀酸总质量的2．0％，带水剂甲苯为10mL，回流温度下反应时间120min，此时酯化率可达99．3％。 |
| 关 键 词： | 纳米复合杂多酸 H3PW12O40/SiO2 琥珀酸二丁酯 催化合成 |
Study on Catalytic Synthesis of Dibutyl Succinate by Nanometer H3PW12O40/SiO2 Complex Heteropoly Acid |
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| Authors: | Deng Bin Zhang Aihua Xu Anwu |
| Affiliation: | Deng Bin Zhang Aihu Xu Anwu (1. Department of Chemistry and Life Seienee, Xiangnan University, Chenzhou 423000, China;2. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China;3.Hefei National Laboratory for Physieal Seiences at Mieroscale, University of Science and Technology of China, Hefei 230026, China) |
| Abstract: | Dibutyl succinate was synthesized from succinate acid and n-butanol with nanometer H3PW12O40/SiO2complex heteropoly acid as catalyst and toluene as azeotropic water stripping agents. The experimental results showed that nanometer H3PW12O40/SiO2was an ideal catalyst for the synthesis of dibutyl succinate.The optimum technical conditions were summed up as follows： when the amount of succinate acid was 0.1 mol, mole ratio of n-butanol to succinate acid was 3.0：1, the dosage of catalyst was 2.0% of the total quality of succinate acid, the use level of water-carring tobuene was 10mL,refluent reaction time was 120min. Under this conditions, the esterification yield was 99.3% |
| Keywords: | H3PW12O40/SiO2 |
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