文献类型：期刊文献

英文题名：Ionic liquid [BMIm][HSO4] as dual catalyst-solvent for the esterification of hexanoic acid with n-butanol

作者：Zeng, Qian[1]; Song, Zhen[2]; Qin, Hao[1]; Cheng, Hongye[1]; Chen, Lifang[1]; Pan, Ming[3]; Heng, Yi[3]; Qi, Zhiwen[1]

机构：[1] Max Planck Partner Group at the State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; [2] Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstrasse 1, Magdeburg, 39106, Germany; [3] School of Chemical Engineering and Technology, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou, 510275, China

年份：2020

卷号：339

起止页码：113

外文期刊名：Catalysis Today

收录：EI(收录号：20191306706436)

语种：英文

外文关键词：Corrosion - Saturated fatty acids - Ionic liquids - Esters - Catalysts - Esterification - Extraction

摘要：Butyl hexanoate (BuHE) is currently synthesized through the Fischer esterification with mineral acid as catalyst, which suffers from the problems of side reaction, difficult recycling, and corrosion. To overcome these disadvantages, ionic liquid 1-butyl-3-methylimidazolium hydrogen sulfate ([BMIm][HSO4]) is employed as dual catalyst-solvent for the esterification of hexanoic acid (HeAc) with n-butanol (BuOH) in a reactive extraction process. The dual functions of [BMIm][HSO4], extraction and catalysis, were confirmed by liquid-liquid equilibria for the two systems {[BMIm][HSO4] + HeAc + BuHE} and {[BMIm][HSO4] + BuOH + BuHE}, and by the comparison of esterifications with or without [BMIm][HSO4], respectively. Moreover, the optimal reactive extraction conditions for BuHE formation were obtained. Finally, the possible mechanism of intensification of [BMIm][HSO4] on BuHE formation in reactive extraction process was proposed. ? 2019 Elsevier B.V.