| Brnsted酸型离子液体[Emim]HSO_4催化酯化反应的研究 |
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| 引用本文： | 程丹丹,徐军,陈宜俍,詹予忠,卫冬燕,贾宏. Brnsted酸型离子液体[Emim]HSO_4催化酯化反应的研究[J]. 天津化工, 2009, 23(5): 26-28. DOI: 10.3969/j.issn.1008-1267.2009.05.009 |
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| 作者姓名： | 程丹丹 徐军 陈宜俍 詹予忠 卫冬燕 贾宏 |
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| 作者单位： | 郑州大学化工学院,河南,郑州,450001 |
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| 基金项目： | 河南省教育厅自然科学基金资助项目 |
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| 摘 要： | 以吡啶为探针分子，采用红外光谱对合成的离子液体[Emim]HSO4的酸性进行了表征。以[Emim]HSO4离子液体为催化剂研究了乙酸和乙醇的酯化反应。考察了反应温度、反应时间和离子液体／反应物量比对酯化反应的影响．实验得到的优化反应条件为：反应温度40℃，反应时间1h，离子液体：反应物：1：5时，乙酸的转化率为76．73％，乙酸乙酯的选择性为100％。反应后离子液体易于与反应产物分离。
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| 关 键 词： | 酸性离子液体 酯化反应 乙酸 乙醇 |
Esterification catalyzed by Br(o)nsted acidic ionic liquid [Emim]HSO4 |
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| CHENG Dan-dan,XU Jun,CHEN Yi-liang,ZHAN Yu-zhong,WEI Dong-yan,JIA Hong. Esterification catalyzed by Br(o)nsted acidic ionic liquid [Emim]HSO4[J]. Tianjin Chemical Industry, 2009, 23(5): 26-28. DOI: 10.3969/j.issn.1008-1267.2009.05.009 |
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| Authors: | CHENG Dan-dan XU Jun CHEN Yi-liang ZHAN Yu-zhong WEI Dong-yan JIA Hong |
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| Affiliation: | (School of Chemical Engineering, Zhengzhou University, Henan Zhengzhou 450001, China) |
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| Abstract: | The acidity of ionic liquid [Emim]HSO4 was investigated by IR spectroscopy with pyridine as probe. Ionic liquid [Emim]HSO4 was used as catalyst in the esterification of acetic acid and alcohol.The effect of reaction conditions on esterification was studied.Conversion rate of acetic acid was 76.73% and selectivity of ethyl acetate was 100% under the following optimal conditions：reaction temperature 40 ℃,reaction time 1 h,ionic liquid：reactant= 1：5.The ionic liquid can be easily separated from the products. |
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| Keywords: | acidic ionic liquid esterification acetic acid alchol |
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