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| 纳米稀土复合固体超强酸SO4^2-／ZrO2-La2O3催化合成氯乙酸乙酯 | |
| 引用本文： | 邓斌,章爱华,徐安武.纳米稀土复合固体超强酸SO4^2-／ZrO2-La2O3催化合成氯乙酸乙酯[J].精细石油化工进展,2008,9(9):14-17. |
| 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,郴州,423000;中国科技大学合肥微尺度物质科学国家实验室,合肥,230026 2. 吉首大学化学化工学院,吉首,416000 3. 中国科技大学合肥微尺度物质科学国家实验室,合肥,230026 |
| 基金项目： | 湖南省教育厅青年基金 |
| 摘 要： | 以纳米稀土复合固体超强酸SO4^2-／ZrO2-La2O3为催化剂，氯乙酸与乙醇为原料合成氯乙酸乙酯。探讨了醇酸摩尔比、催化剂用量、环己烷用量、反应时间等因素对酯化率的影响。试验结果表明，纳米稀土复合固体超强酸SO4^2-／ZrO2-La2O3是合成氯乙酸乙酯的良好催化剂，其最适宜的反应条件：氯乙酸0．10mol，醇酸摩尔比3．0：1，催化剂用量1．0g，环己烷用量15mL，回流分水反应2．0h。在此条件下，氯乙酸乙酯酯化率可达94．3％。 |
| 关 键 词： | 纳米固体超强酸 SO4^2-/ZrO2-La2O3 氯乙酸乙酯 酯化反应 |
Catalytic Synthesis of Ethyl Chloroacetate With Nanosized Rare Earth Composite Solid Superacid SO42-/ZrO2-La2O3 |
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| Deng Bin,Zhang Aihua,Xu Anwu.Catalytic Synthesis of Ethyl Chloroacetate With Nanosized Rare Earth Composite Solid Superacid SO42-/ZrO2-La2O3[J].Advances in Fine Petrochemicals,2008,9(9):14-17. | |
| Authors: | Deng Bin Zhang Aihua Xu Anwu |
| Affiliation: | Deng Bin, Zhang Aihua, Xu Anwu ( 1. Department of Chemistry and Life Science, Xiangnan University, Chenzhou 423000 ; 2. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000; 3. Hefei National Laboratory for Physical Sciences at Microscale , University of Science and Technology of China, Hefei 230026) |
| Abstract: | Ethyl chloroacetate was synthesized from chloroacetic acid and ethyl alcohol with nanosized rare earth composite solid superaeid SO4^2-/ZrO2-La2O3 as catalyst. The effects of molar ratio of chloroacetic acid to ethyl alcohol, catalyst dosage, water - carrying agent （cyclohexane） dosage and reaction time on the yield of ester were discussed. Experimental results showed that nanosized rare earth composite solid superacid SO4^2-/ZrO2-La2O3 was an excellent catalyst. The optimum reaction conditions were as follows： chloroaeetic acid 0. 1 tool, molar ratio of alcohol to acid 3.0： 1, nanosized rare earth composite solid superacid SO4^2-/ZrO2-La2O3 1.0 g, cyclohexane as water- carrying agent 15mL, reaction time 2 hours. The esterification ratio was up to 94.3% under the above optimum conditions. |
| Keywords: | SO42-/ZrO2-La2O3 |
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