第 36 卷第 6 期 Vol. 36 No. 6 2006 年 12 月 Dec 2006

所属栏目：有机合成原料 制备绿色润滑剂三羟甲基丙烷酯的催化酯化新工艺

王素琴; 张泰铭; 廖德仲; 何节玉; 毛立新; 许怡学(中南大学化学化工学院; 湖南理工学院化学化工系; 湖南长沙; 湖南岳阳)

摘　要：以油酸和三羟甲基丙烷(TMP)为原料,用SnCl2.2H2O作催化剂,通过减压酯化的方法合成了三羟甲基丙烷油酸酯。反应的优化条件如下:n(油酸)n∶(TMP)=3.11∶,催化剂用量4%,反应温度170℃,反应时间4h,真空度0.09MPa。优化条件下TMP的酯化率达到94%。产物结构经IR光谱证实。

关键词：油酸; 三羟甲基丙烷; 三羟甲基丙烷油酸酯; SnCl2.2H2O; 减压酯化

中图分类号：TQ225.24　　文献标识码：A　　文章编号：1009-9212(2006)06-0041-03

The Synthesis of TMP Oleate

WANG Su-qin;ZHANG Tai-ming;LIAO De-zhong;MAO Li-xin;HE Jie-yu;XU Yi-xue(Department of Chemistry and Chemical Engineering,Central South University;Department of Chemical Engineering;Hunan Institute of Science and Technology)

Abstract：Oleic acid trimethylolpropane ester was synthesized from esterification of oleic acid and trimethylolpropane under reduced pressure with SnCl2·2H2O as catalyst.The optimum conditions were found as follows: n(oleic acid)/n(trimethylolpropane) was 3.1,amount of SnCl2·2H2O 4%(based upon mass percent oleic acid),reaction for 4 h at temperature 170℃ and vacuum degree 0.09 MPa.In the optimum conditions,the conversion rate of trimethylolpropane was 94%.The structure of product was identified by IR.

Key words：trimethylolpropane; oleic acid; oleic acid trimethylolpropane ester; SnCl2·2H2O; esterification

基金项目：湖南省教育厅科研项目课题(05C589)

收稿日期：2006-09-20

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