Study of liquid-liquid extraction of ethanol plus water azeotropic mixtures using two imidazolium-based ionic liquids

被引：19
作者：
Chafer, Amparo [1 ]
de la Torre, Javier [1 ]
Loras, Sonia [1 ]
Monton, Juan B. [1 ]
机构：
[1] Univ Valencia, Escuela Tecn Super Ingn, Dept Ingn Quim, E-46100 Valencia, Spain
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2018年 / 118卷
关键词：
Liquid-liquid extraction; Ionic liquid; 1-Ethyl-3-methylimidazolium bis(trifluoro methylsulfonyl)imide ([emim][[Tf2N]); 1-Hexyl-3-methylimidazolium bis(trifluoro methylsulfonyl)imide ([hmim][[Tf2N]); Ethanol; Water; DIFFERENT TEMPERATURES; TERNARY-SYSTEM; EQUILIBRIA; BIS(TRIFLUOROMETHYLSULFONYL)IMIDE;
D O I：
10.1016/j.jct.2017.11.006
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The present work was focused on the study of two imidazolium-based ionic liquids (ILs) as solvents in liquid-liquid extraction of ethanol from aqueous mixtures. With this aim, the experimental liquid-liquid equilibria (LLE) data of water (1) + ethanol (2) + 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfo nyl) imide ([emim][Tf2N]) (3) and water (1) + ethanol (2) + 1-hexyl-3-methylimidazolium bis(trifluorome thylsulfonyl) imide ([hmim][Tf2N]) (4) systems were obtained at different temperatures: 283.2, 303.2, and 323.2 K, in order to check the influence of temperature. The results were correlated by nonrandom two-liquid (NRTL) and universal quasichemical (UNIQUAC) models with good concordance in both cases. Finally, the ability of the two ILs to act as solvents was studied by evaluating the coefficient distribution and the selectivity of ternary systems and compared with another IL from the literature. (C) 2017 Elsevier Ltd.
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页码：92 / 99
页数：8
相关论文
共 18 条
[1]   STATISTICAL THERMODYNAMICS OF LIQUID-MIXTURES - NEW EXPRESSION FOR EXCESS GIBBS ENERGY OF PARTLY OR COMPLETELY MISCIBLE SYSTEMS [J].
ABRAMS, DS ;
PRAUSNITZ, JM .
AICHE JOURNAL, 1975, 21 (01) :116-128
[2]   Measurement and correlation of liquid-liquid equilibria at different temperatures in water+1-propanol+1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide or 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ternary systems [J].
Chafer, Amparo ;
de la Torre, Javier ;
Pilar Cumplido, Ma ;
Monton, J. B. .
FLUID PHASE EQUILIBRIA, 2016, 429 :76-83
[3]   Study of liquid-liquid equilibria at different temperatures of water plus ethanol+1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ternary system [J].
Chafer, Amparo ;
de la Torre, Javier ;
Lladosa, Estela ;
Loras, Sonia .
FLUID PHASE EQUILIBRIA, 2016, 426 :3-9
[4]   Liquid-Liquid Equilibria of Water plus Ethanol+1-Butyl-3-methylimidazolium Bis(trifluoromethanesulfonyl)imide Ternary System: Measurements and Correlation at Different Temperatures [J].
Chafer, Amparo ;
de la Torre, Javier ;
Font, Alicia ;
Lladosa, Estela .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2015, 60 (08) :2426-2433
[5]   Liquid phase behavior of ionic liquids with water and 1-octanol and modeling of 1-octanol/water partition coefficients [J].
Chapeaux, Alexandre ;
Simoni, Luke D. ;
Stadtherr, Mark A. ;
Brennecke, Joan F. .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2007, 52 (06) :2462-2467
[6]  
de la Torre J., ES1128706
[7]   Ionic liquids as extraction solvents: Where do we stand? [J].
Dietz, Mark L. .
SEPARATION SCIENCE AND TECHNOLOGY, 2006, 41 (10) :2047-2063
[8]   Mutual solubilities of water and the [Cnmim][Tf2N] hydrophobic ionic liquids [J].
Freire, Mara G. ;
Carvalho, Pedro J. ;
Gardas, Ramesh L. ;
Marrucho, Isabel M. ;
Santos, Luis M. N. B. F. ;
Coutinho, Joao A. P. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (06) :1604-1610
[9]  
Gmehling J., 1977, DECHEMA CHEM DATA SE
[10]   Pressure, isotope, and water co-solvent effects in liquid-liquid equilibria of (ionic liquid plus alcohol) systems [J].
Najdanovic-Visak, V ;
Esperança, JMSS ;
Rebelo, LPN ;
da Ponte, MN ;
Guedes, HJR ;
Seddon, KR ;
de Sousa, HC ;
Szydlowski, J .
JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (46) :12797-12807
12