文献类型：期刊文献

英文题名：Influence of binary ionic liquid mixtures of [BMIM][Cl] and [BMIM][BF4] on isobaric vapor-liquid equilibrium of acetonitrile?+?water at atmospheric pressure

作者：Li, Jinlong[1]; Zhu, Hong[2]; Peng, Changjun[2]; Liu, Honglai[2]

机构：[1] Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China; [2] State Key Laboratory of Chemical Engineering, Department of Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China

年份：2019

卷号：284

起止页码：675

外文期刊名：Journal of Molecular Liquids

收录：EI(收录号：20191606777782)

语种：英文

外文关键词：Acetonitrile - Atmospheric pressure - Binary mixtures - Chlorine compounds - Mixing

摘要：The effects of ionic liquid mixtures on the phase behavior of azeotropic mixture of acetonitrile + water were presented through the experimental determinations of isobaric vapor-liquid equilibrium for acetonitrile + water + 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4]) and acetonitrile + water + 1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) + [BMIM][BF4] at atmospheric pressure (101.3 kPa). The mole ratios of [BMIM][Cl] to [BMIM][BF4] in the mixing ILs were fixed at 2:1, 1:1 and 1:2, respectively. The results showed that [BMIM][BF4] was ineffective in breaking the azeotropy of acetonitrile and water, which whereas could be broken when [BMIM][Cl] reached a certain concentration in the mixing ILs. VLE data of ternary and quaternary mixtures were satisfactorily correlated and predicted with NRTL model and COSMO-SAC could give a reasonable prediction of VLE for the investigated mixtures. Additionally, the analysis of interactions among different molecules showed that the interactions between [BMIM][Cl] and water are strong while ones between [BMIM][BF4] and water weak. ? 2019 Elsevier B.V.