离子液体[BSMim]HSO_4催化合成油酸甲酯的研究  

Synthesis of Methyl Oleate Catalyzed by Bronsted Acid Ionic Liquids [BSMim]HSO_4

作　　者：陈枫[1] 韩本勇[1] 张无敌[1] 陈玉保[1] 尹芳[1] 刘士清[1] 赵兴玲[1] 柳静[1] 许玲[1] 王昌梅[1] 杨红[1] 

机构地区：[1]云南师范大学,云南昆明650092

出　　处：《云南师范大学学报（自然科学版）》2013年第6期59-62,共4页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：云南省工业与信息化委员会(2011292);云南省应用基础研究基金(2010CD050);云南省能源局(20102127);云南省教育厅科学研究基金(2011Z028)联合资助项目

摘　　要：制备了一种对水稳定的磺酸功能化咪唑离子液体1-甲基-3-丁磺酸基咪唑硫酸氢盐([BSMim]HSO4),并以其作为催化剂催化油酸酯化合成油酸甲酯。离子液体表现出良好的催化活性及稳定性。通过单因素实验确定最佳反应条件为:离子液体[BSMim]HSO4催化剂用量为油酸质量的20%,n(甲醇):n(油酸)=3∶1、反应温度75℃、反应时间4h,酯化率达85.3%以上,此外离子液体还具有稳定性好、可循环使用等特点。An ionic liquid stable in water, 1-（3-sulfonic acid） butyl-imidazole hydrosulfate with an alkanesulfonic acid group was prepared. Synthesis of methyl oleate from oleic acid catalyzed by the ionic liquid was studied. Ionic liquid [-BSMim-]HSO4 exhibited good catalytic activity and stability. Optimal esterification condition was obtained as follows： n（methanol）： n（oleic acid）= 3：1, reaction temperature 75℃, reaction time 4 h, dosage of ionic liquid = 20.0% of the oleic acid weight. The results showed acid and methanol, the yield of could be repeatedly used. that [BSMim]HSO4 has good methyl oleate reached 85.3%. activity for esterification of oleic The ionic liquid was stable and

关 键 词：Bronsted酸性离子液 酯化 油酸甲酯 

分 类 号：TQ517[化学工程]