Separation of Hexane/Ethanol Mixtures. LLE of Ternary Systems (Ionic Liquid or Hyperbranched Polymer plus Ethanol plus Hexane) at T=298.15 K

被引：55

作者：

Domanska, Urszula ^{[1
]}

Zolek-Tryznowska, Zuzanna ^{[1
]}

Pobudkowska, Aneta ^{[1
]}

机构：

[1] Warsaw Univ Technol, Div Phys Chem, Fac Chem, PL-00664 Warsaw, Poland

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2009年 / 54卷 / 03期

关键词：

AROMATIC-HYDROCARBONS; PHASE-BEHAVIOR; FIELD;

D O I：

10.1021/je8007588

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Liquid-liquid phase equilibria (LLE) of hexyl(2-hydroxyethyl)dimethylammonium tetrafluoroborate (C6BF4) or hyperbranched polymer (a fatty-acid-modified dendritic polymer, Boltorn U3000) B-U3000 + ethanol + hexane, at T = 298.15 K have been measured. The results are discussed in terms of the selectivity of ethanol and hexane separation. Sloping of the tie lines toward the ethanol vertex is observed for both mixtures (C6BF4 or B-U3000 + ethanol + hexane). The results indicate high selectivity for separation of ethanol and hexane with the ammonium ionic liquid in solvent extraction. The nonrandom two-liquid NRTL model was successfully used to correlate the experimental tie lines. The maximum mean square deviation in mole fraction was 0.01.

引用

页码：972 / 976

页数：5

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