|本期目录/Table of Contents|

[1]孙华,李胜清,陈浩,等.1-烷基-3-甲基咪唑硫酸氢盐催化油酸甲酯的研究[J].武汉工程大学学报,2009,(01):25-28.
　SUN Hua,LI Sheng qing,CHEN Hao,et al.Study on synthesis of methyl oleate catelyzed by1-alkyl-3-methylimidazolium hydrosulfate[J].Journal of Wuhan Institute of Technology,2009,(01):25-28.
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1-烷基-3-甲基咪唑硫酸氢盐催化油酸甲酯的研究()
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2009年01期
页码:
25-28
栏目:
化学与化学工程
出版日期:
2009-01-28

文章信息/Info

Title:
Study on synthesis of methyl oleate catelyzed by
1-alkyl-3-methylimidazolium hydrosulfate
文章编号:
16742869(2009)01002504
作者:
孙华; 李胜清; 陈浩; 刘俊超; 薛爱芳; 刘汉兰*
华中农业大学理学院，湖北 武汉 430070
Author(s):
SUN Hua; LI Shengqing; CHEN Hao; LIU Junchao; XUE Aifang; LIU Hanlan*
College of Science，Huazhong Agricultural University，Wuhan 430070，China
关键词:
酸性离子液体; 制备; 催化性能; 油酸; 酯化反应
Keywords:
acid ionic liquids; synthesize; catalyze; oleic acid; esterification
分类号:
O 621.22
DOI:
-
文献标志码:
A
摘要:
为寻找高活性催化剂，制备了5种甲基咪唑类硫酸氢盐离子液体(［CnMIm］HSO4，n=0，2，4，6，8)，测定了其酸性强度，研究了其酯化催化性能。结果表明：在这5种离子液体中，1己基3甲基咪唑硫酸氢盐(［C6MIm］HSO4)催化酯化反应效果最佳，其反应条件是：反应时间14 h，反应温度为90 ℃，n（甲醇）：n（油酸）=2.5∶1，催化剂用量为酸重的8%，油酸甲酯的产率可达91％以上.产物易于纯化，离子液体重复使用了6次仍显示出良好的催化效果.在温和的实验条件下，［C6MIm］HSO4对油酸的酯化反应显示出良好的催化活性.
Abstract:
Five acidic ionic liquids with an hydrogen sulfate acid group were synthesized (［CnMIm］HSO4，n=0，2，4，6，8). Their acidity was studied. Their application in esterification utilizing oleic acid and methanol was explored. The experimental results showed 1-hexyl-3-methylImidulium hydrogen sulphate(［C6MIm］HSO4) was the best catalyst of acidic ionic liquid in esterification. Under optimal esterification conditions：n (methanol) ∶n ( oleic acid)=2.5∶1，m ( oleic acid)∶m(［C6MIm］HSO4)=1∶0.08，temperature 90 ℃ and time 14 h，mass fraction of fatty acid methyl ester could reach more than 91%. The ionic liquids were stable and could be reused. Methyl oleate was separated from raw material easily；even if ionic liquid was reused beyond 6 times，the conversion of esterification did not decrease.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20080304基金项目：武汉市晨光计划（200750731280）资助项目
作者简介：孙华（1981 ），男，山东潍坊人，硕士研究生.研究方向：离子液体合成研究.
指导老师：刘汉兰，教授，硕士生导师.研究方向：绿色化学，有机合成.
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