离子液体[Hnhp]HSO_4催化硬脂酸酯化的工艺优化  

Optimization of Catalytic Stearic Acid Esterification by Ionic Liquid [Hnhp]HSO_4

作　　者：王昌梅[1] 孙雁明 韩本勇[1] 黄俊华[1] 尹芳[1] 赵兴玲[1] 吴凯[1] 柳静[1] 杨红[1] 张无敌[1] 

机构地区：[1]云南师范大学,云南昆明650500 [2]云南省农村能源工作站,云南昆明650224

出　　处：《云南师范大学学报（自然科学版）》2017年第3期5-9,共5页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：云南省工业与信息化委员会(2011292);云南省农村能源工程重点实验室基金(2016年);西南地区可再生能源研究与开发协同创新中心项目(05300205020516009);云南师范大学博士项目(01701205020503085)联合资助

摘　　要：研究了离子液体催化剂[Hnhp]HSO_4催化硬脂酸酯化的工艺,结果表明在温度为60℃、醇酸摩尔比为15∶1、反应时间为3h和催化剂[Hnhp]HSO_4用量为硬脂酸的5%时,酯化率高达98.75%.酯化反应结束后催化剂与酯化产物有明显分层,多次循环催化后仍然具有较高的催化活性.Ionized liquid [Hnhp]HSO4 with excellent acid catalysis has many advantages of catalysts. Such as, harmless to the environment, well stability and good catalytic activity, and it was difficult to be oxidized. So,it is widely applied in many chemical reactions. In this paper, we studied the process of catalyzing stearic acid catalyzed by ionic liquid catalyst [Hnhp]HSO4. The results show that the esterification rate was 98.75% when the molar ratio of alkyd was 15 ： 1, the reaction time was 3h and the amount of catalyst [Hnhp]HSO4 was 5 % of stearic acid. After the esterification reaction, the catalyst and the esterified product have obvious stratification, and the catalyst has high catalytic activity after several cycles of catalysis.

关 键 词：离子液体[Hnhp]HSO4 酯化 硬脂酸甲酯 正交优化 

分 类 号：TE667[石油与天然气工程—油气加工工程]