| 离子液体催化合成食用香料乳酸乙酯的研究 |
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| 引用本文： | 张小曼.离子液体催化合成食用香料乳酸乙酯的研究[J].化学工程师,2010(1):58-60. |
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| 作者姓名： | 张小曼 |
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| 作者单位： | 昆明学院化学科学与技术系,云南,昆明,650031 |
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| 摘 要： | 以离子液体HSO3-pmim]HSO4为催化剂,乳酸和乙醇为原料合成乳酸乙酯。通过正交实验考察了影响酯化反应的主要因素,确定最佳合成条件为:HSO3-pmim]HSO4用量10mL,酸醇摩尔比1.0∶1.5,反应温度110℃,反应时间2.0h,酯化率达96.7%。离子液体易分离回收,可重复使用。
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| 关 键 词： | 离子液体 催化合成 乳酸乙酯 |
Study on catalytic synthesis of ethyl lactate by ionic liquid |
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| ZHANG Xiao-man.Study on catalytic synthesis of ethyl lactate by ionic liquid[J].Chemical Engineer,2010(1):58-60. |
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| Authors: | ZHANG Xiao-man |
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| Affiliation: | ZHANG Xiao-man (Department of Chemical Science and Technology, Kunming University, Kunming 650031, China) |
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| Abstract: | Ethyl lactate was synthesized from lactic acid and ethyl alcohol with ionic liquid HSO3-pmim] HSO4 as catalyst. The effect of primary factors on esterification was investigated by orthogonal design experiment. The results showed that the optimum reaction conditions were： HSO3-pmim]HSO4 10mL, the mole ratio of acid to alcohol 1.0：1.5, the reaction temperature 110℃ and the time 2.0h. The esterification yield is 96.7%.The ionic liquid could be isolated from other matters and repetition use. |
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| Keywords: | ionic liquid catalyst synthesis ethyl lactate |
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