Vapor-liquid equilibria of ternary systems with 1-ethyl-3-methylimidazolium ethyl sulfate using headspace gas chromatography

被引：21

作者：

Matsuda, Hiroyuki ^{[2
]}

Tochigi, Katsumi ^{[2
]}

Liebert, Vincent ^{[1
]}

Gmehling, Juergen ^{[1
]}

机构：

[1] Carl von Ossietzky Univ Oldenburg, D-26111 Oldenburg, Germany

[2] Nihon Univ, Dept Mat & Appl Chem, Chiyoda Ku, Tokyo 1018308, Japan

来源：

FLUID PHASE EQUILIBRIA | 2011年 / 307卷 / 02期

关键词：

Ionic liquids; Vapor-liquid equilibria; Headspace gas chromatography; Entrainer; Separation factor; IONIC LIQUIDS; ACTIVITY-COEFFICIENTS; INFINITE DILUTION; PHASE-EQUILIBRIA; THERMODYNAMIC PROPERTIES; EXCESS PROPERTIES; UNIFAC DORTMUND; PREDICTION; MIXTURES; 1-PROPANOL;

D O I：

10.1016/j.fluid.2011.05.016

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Vapor-liquid equilibria (VLE) for two binary systems 1-propanol + water and methyl acetate + methanol, and the ternary mixtures with the ionic liquid 1-ethyl-3-methylimidazolium ethyl sulfate [EMIM](+)[EtSO(4)](-) as entrainer were measured by headspace gas chromatography. From the experimental VLE data, the influence of the ionic liquid on the separation factors was investigated. The experimental results for the ternary systems show that [EMIM](+)[EtSO(4)](-) has a great influence on the separation factors of the systems investigated. Furthermore, the experimental separation factors were compared with the predicted ones of other ionic liquids and conventional selective solvents using modified UNIFAC (Dortmund). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：197 / 201

页数：5

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