| 固体超强酸S2O82-/TiO2催化合成乙酸正丁酯 |
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| 引用本文： | 李秋荣,赵倩.固体超强酸S2O82-/TiO2催化合成乙酸正丁酯[J].工业催化,2006,14(7):35-37. |
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| 作者姓名： | 李秋荣 赵倩 |
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| 作者单位： | 燕山大学环境与化学工程学院， 河北 秦皇岛，066004 |
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| 摘 要： | 以固体超强酸S2O82-/TiO2为催化剂、冰乙酸和正丁醇为原料合成乙酸正丁酯，考察反应条件对酯化率的影响。结果表明，最佳反应条件n(醇)∶n(酸)=1.4∶1，催化剂用量0.5 g(冰乙酸用量0.2 mol), 过硫酸铵浓度0.75 mol·L－1，115～117 ℃反应1.5 h，酯化率达99%以上。催化剂可重复使用,且对设备腐蚀程度较小。
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| 关 键 词： | 乙酸正丁酯 固体超强酸 正交实验 酯化 |
| 文章编号： | 1008-1143（2006）07-0035-03 |
| 收稿时间： | 2005-12-17 |
| 修稿时间： | 2005年12月17 |
Synthesis of n-butyl acetate catalyzed by solid S2O8^2-/TiO2 superacld |
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| LI Qiu-rong.Synthesis of n-butyl acetate catalyzed by solid S2O8^2-/TiO2 superacld[J].Industrial Catalysis,2006,14(7):35-37. |
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| Authors: | LI Qiu-rong |
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| Affiliation: | School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004,Hubei,China |
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| Abstract: | n-Butyl acetate was synthesized from acetic acid and n-butanol using S2O82-/TiO2 superacid as the catalyst. The influences of reaction condition on the esterification rate were investigated. The results showed that the optimum condition for synthesis of n-butyl acetate using S2O82-/TiO2 solid superacid was as follows: 0.2 mol acetic acid, n(acetic acid) ∶n(n-butanol)=1.0∶1.4; 0.5 g catalyst; concentration of (NH2)2S2O8=0.75 mol·L－1; reaction at 115-117 ℃ for 1.5 h. Esterification rate of over 99% was attained. The catalyst can be repeatedly used with little corrosion to equipment. |
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| Keywords: | n-butyl acetate solid superacid orthogonal experimental esterification |
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