SO_3H-功能化双核型酸性离子液体的制备及其催化合成油酸甲酯的研究  

Preparation of SO_3H-functionalized Dikaryon Acidic Ionic Liquid and Study on Catalytic Synthesis of Methyl Oleate

作　　者：郜蕾[1] 赵亚东[2] 刘雯琦 孙晓波[2] 高健[2] 

机构地区：[1]郑州大学国际学院,河南郑州450052 [2]郑州大学化工与能源学院,河南郑州450001

出　　处：《河南化工》2016年第8期18-21,共4页Henan Chemical Industry

基　　金：河南省教育厅高等学校重点科研项目(15B530004)

摘　　要：以三甲基硅咪唑为原料,制备了一种强酸性磺酸基功能化双核离子液体。采用NMR对其进行表征,并将其作为催化合成油酸甲酯的催化剂,该离子液体表现出良好的催化活性。通过单因素法得到最佳酯化反应条件:反应温度100℃,反应时间5 h,催化剂用量为油酸质量的6%,醇酸物质的量比为6∶1,油酸酯化率为87%。此外,催化剂还表现出良好的稳定性和循环使用性。One SO3H -functionalized acidic dikaryon ionic liquid is synthesized using N - （Trimethylsi- lyl） imidazole as raw material. The structural characterization of the acidic ionic liquid is confirmed by NMR. Catalytic synthesis of methyl oleate is studied using SO3H -funetionalized acidic dicationic ionic liquid as catalyst, and it shows good catalytic performance in the esterification reaction. Moreover, the reaction conditions are optimized. The results indicate that the dikaryon acidic ionic liquid is a good catalyst,and the optimized reaction conditions of 100 ℃ n（methanol）/n（ oleic acid） =6：1 ,m（ eat. ）/m（ adipic acid） = 0.06, reaction time 6 h, the yield of methyl oleate is 87 %. Besides that, the catalyst also shows good stability and reaycling use.

关 键 词：双核离子液体 油酸甲酯 酯化 酸催化 

分 类 号：TE667[石油与天然气工程—油气加工工程]