Wenxiu Li, Linzi Zhang, Xin He, Qingfeng Ni, Tao Zhang
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引用次数: 0
Abstract
Three ionic liquids (ILs)(1-ethyl-2,3-dimethylimidazolium acetate, [EMMIM][AC]; tributyl-methylammonium acetate, [N4,4,4,1][AC]; and tetraethylammonium acetate, [N2,2,2,2][AC]) were chosen. The vapor–liquid equilibrium (VLE) data of ternary mixtures (acetate + ethanol + IL) were measured at 101.3 KPa. NRTL equation was used to correlate the data. From NRTL model, for [N2,2,2,2][AC], [EMMIM][AC], and [N4,4,4,1][AC], minimum mole fractions for completely eliminating azeotrope are 0.015, 0.020 and 0.022, respectively. From the average relative volatility and σ-profiles, it can be obtained that the separation ability order is [EMMIM][AC] > [N2,2,2,2][AC] > [N4,4,4,1][AC].
期刊介绍：
Journal of Solution Chemistry offers a forum for research on the physical chemistry of liquid solutions in such fields as physical chemistry, chemical physics, molecular biology, statistical mechanics, biochemistry, and biophysics. The emphasis is on papers in which the solvent plays a dominant rather than incidental role. Featured topics include experimental investigations of the dielectric, spectroscopic, thermodynamic, transport, or relaxation properties of both electrolytes and nonelectrolytes in liquid solutions.
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