Isobaric VLE data for the system of butan-1-ol + butyl ethanoate+1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide

被引：11

作者：

Tian, Zheng ^{[1
]}

Cui, Xianbao ^{[1
]}

Cai, Jialin ^{[1
]}

Zhang, Ying ^{[1
]}

Feng, Tianyang ^{[1
]}

Peng, Yanmei ^{[1
]}

Xue, Lexing ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Tianjin 300072, Peoples R China

来源：

FLUID PHASE EQUILIBRIA | 2013年 / 352卷

关键词：

Vapor-liquid equilibria; Ionic liquids; Separation; Azeotropic mixture x; VAPOR-LIQUID-EQUILIBRIA; IONIC LIQUIDS; EXTRACTIVE DISTILLATION; METHYL ACETATE; 1-ETHYL-3-METHYLIMIDAZOLIUM; MIXTURES; PLUS; PREDICTION; SOLVATION; ETHANOL;

D O I：

10.1016/j.fluid.2013.05.020

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Vapor-liquid equilibrium (VLE) for the ternary system of butan-1-ol + butyl ethanoate + 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonl]imide ([BMIM][NTf2]) and the binary system of butan-1-ol +[BMIM][NTf2], as well as butyl ethanoate + [BMIM][NTf2] were measured at 101.3 kPa. The experimental VLE data were correlated by the nonrandom two-liquid (NRTL) activity coefficient model, and the correlated results agreed well with the experimental data. The results showed that the addition of ionic liquid ([BMIM][NTf2]) to the azeotropic mixture produced a notable salting-out effect, which enhanced the relative volatility of butan-1-ol to butyl ethanoate. The ionic liquid entrainer [BMIM][NTf2] was compared with the conventional entrainer ethylene glycol, and [BMIM][NTf2] is more effective for the separation of the azeotropic mixture of butan-1-ol + butyl ethanoate via extractive distillation. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：75 / 79

页数：5

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