| SO42-/TiO2固体超强酸催化合成乙酸乙酯 |
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| 引用本文： | 侯维艳,段凤仙,张永伍,杨芬.SO42-/TiO2固体超强酸催化合成乙酸乙酯[J].广州化工,2012,40(16):56-58. |
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| 作者姓名： | 侯维艳 段凤仙 张永伍 杨芬 |
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| 作者单位： | 1. 曲靖师范学院化学化工学院,云南曲靖,655000
2. 曲靖市第一中学,云南曲靖,655000 |
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| 基金项目： | 云南省科技厅资助项目，曲靖师范学院资源与环境化学重点实验室，曲靖市科技局基金资助项目，曲靖师范学院综合设计性实验资助项目，有机化学双语示范课程资助项目 |
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| 摘 要： | 用固体超强酸SO42-/TiO2为催化剂,以乙醇和乙酸为原料合成乙酸乙酯,探讨了催化剂制备条件酯收率的影响,实验结果表明:当用1 mol.L-1H2SO4浸渍TiO212 h,400℃焙烧2 h所得固体超强酸对催化合成乙酸乙酯显示出较高的催化活性。反应温度80℃,催化剂用量为2.0 g,醇酸摩尔比1.8∶1,反应时间为3.0 h时酯的收率最高可达97%。
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| 关 键 词： | 乙酸乙酯 固体超强酸SO42-/TiO2 |
Synthesis of Ethyl Acetate by Solid Superacid SO42-/TiO2 |
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| HOU Wei - yan,DUAN Feng - xian,ZHANG Yong - wu,YANG Fen.Synthesis of Ethyl Acetate by Solid Superacid SO42-/TiO2[J].GuangZhou Chemical Industry and Technology,2012,40(16):56-58. |
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| Authors: | HOU Wei - yan DUAN Feng - xian ZHANG Yong - wu YANG Fen |
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| Affiliation: | 1 College of Chemistry and Chemical Engineering, Qujing Normal University, Yunnan Qujing 655011; 2 Qujing No. 1 Middle School, Yunnan Qujing 655000, China) |
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| Abstract: | Ethyl acetate was synthesized by esterification of alcohol and acetic acid using solid superacid SO42-/TiO2 catalyst. The preparation condition of catalyst was investigated. The experimental results showed that solid superacid had high catalytic activity in synthesis of ethyl acetate using 1 mol.L-1 H2SO4 impregnated TiO2 12 h, and then calcined at 400 ℃ for 2 h. The optimum reaction conditions were molar ration of alcohol to acetic acid 1.8 ： 1, amount of catalyst 2.0 g, reaction temperature 80 ℃, and the yield of ethyl acetate reached 97% after reaction for 3 h. |
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| Keywords: | ethyl acetate solid superacid SO42-/TiO2 |
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