Study of the capability of 1-decyl-3-methylimidazolium bis (trifluoromethylsulfonyl)imide ionic liquid as solvent in the separation of water from 1-propanol or 2-propanol at different temperatures

被引：9
作者：
Pilar Cumplido, M. [1 ]
Cuenca-Navarro, Maria [1 ]
Chafer, Amparo [1 ]
de la Torre, Javier [1 ]
Pasqual Cerisuelo, Josep [1 ]
机构：
[1] Univ Valenda, Dept Ingn Quim, Escuela Tecn Super Ingn, Valencia 46100, Spain
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2020年 / 318卷
关键词：
Ionic liquid; Liquid-liquid equilibria; 1-Decyl-3-methylimidazolium bis (trifluoromethylsulfonyl)imide ([dmim][Tf2N]); 1-Propanol; 2-Propanol; Water; EQUILIBRIUM DATA; BIS(TRIFLUOROMETHYLSULFONYL) IMIDE; TERNARY-SYSTEMS; PREDICTION; MIXTURES; RETRIEVAL; WATER+2-PROPANOL; ENTRAINERS; PRESSURE;
D O I：
10.1016/j.molliq.2020.114083
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
After the good behavior of different 1-allryl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquids (ILs) used as solvents in the separation of 1-propanol and 2-propanol from water, liquid-liquid equilibria data was measured from a system formed by a ternary mixture of water, 1-propanol or 2-propanol and 1-decyl-3-methylimidazolium bis(trifluoromethylsulfonyflimide ([dmim][Tf2N]) at 2832, 303.2 and 323.2 K and atmospheric pressure. The non-random two-liquid (NRTL) and universal quasichemical (UNIQUAC) models were employed to obtain the thermodynamic parameters of both ternary mixtures, with good results in all cases. Finally, the capability of [dmim][Tf2N] to separate both azeotropic mixtures was studied through the distribution coefficient and selectivity and compared with the results obtained using different 1-alkyl-3-methylimidazolium bis(trilluoromethylsulfonyl)irnide ILs. (C) 2020 Elsevier B.V. All rights reserved.
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页数：10
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