Study of Liquid-Liquid Equilibria of Toluene plus (Hexane, Heptane, or Cyclohexane) with 1-Ethyl-3-methylimidazolium Ethylsulfate at 308.15 K

被引：2

作者：

Martinez-Reina, Marlon ^{[1
]}

Amado-Gonzalez, Eliseo ^{[1
]}

Mauricio Munoz-Munoz, Yonny ^{[2
]}

机构：

[1] Univ Pamplona, Fac Sci, Dept Chem, Pamplona, Colombia

[2] City Univ Melendez, Univ Valle, Sch Chem Engn, Cali, Colombia

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2012年 / 85卷 / 10期

关键词：

IONIC LIQUID; BENZENE PLUS; AROMATIC-HYDROCARBONS; ATMOSPHERIC-PRESSURE; TERNARY-SYSTEMS; BINARY-MIXTURES; T=298.15 K; EXTRACTION; SEPARATION; SULFOLANE;

D O I：

10.1246/bcsj.20120112

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The extraction of toluene from hydrocarbons (hexane, heptane, and cyclohexane) was analyzed by liquid extraction with 1-ethyl-3-methylimidazolium ethylsulfate [EMim][EtSO4] ionic liquid, as a solvent. The experimental liquid + liquid equilibrium (LLE) data were determined at T = 308.15 K and atmospheric pressure. Selectivity and distribution coefficient, derived from the tie-lines, were used to determine the ability of [EMim][EtSO4] as solvent for the separation of toluene from its mixtures with alkanes and cycloalkane. The degree of consistency of the experimental LLE data was ascertained using the Othmer-Tobias equation. The experimental data for LLE of the ternary systems were correlated with the nonrandom two-liquid (NRTL) and universal quasi-chemical (UNIQUAC) thermodynamic models.

引用

页码：1138 / 1144

页数：7

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