Modification of the Furter equation and correlation of the vapor-liquid equilibrium for mixed-solvent electrolyte systems

被引：8

作者：

Wu, WL

Zhang, YM

Lu, XH

Wang, YR ^{[1
]}

Shi, J

Lu, BCY

机构：

[1] Nanjing Univ Chem Technol, Dept Chem Engn, Nanjing 210009, Peoples R China

[2] Univ Ottawa, Dept Chem Engn, Ottawa, ON K1N 6N5, Canada

来源：

FLUID PHASE EQUILIBRIA | 1999年 / 154卷 / 02期

关键词：

alcohol; water; salt effect; vapor-liquid equilibrium;

D O I：

10.1016/S0378-3812(98)00440-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Isobaric vapor-liquid equilibrium values at 1 atm pressure were measured for the systems 1-propanol-water-potassium acetate and 2-propanol-water-potassium acetate under fixed salt mole fractions using a modified Othmer recirculation still. A modified Furter equation, In(alpha(s)/alpha) = k(1)z + k(2)z(2), was proposed for correlating the effect of dissolved salts on vapor-liquid equilibrium (VLE). The modified equation contains two parameters that are applicable to the entire salt/solvent composition range. Correlation of VLE for 15 mixed-solvent electrolyte systems was made by means of the proposed modified equation with better results than those obtained from the original equation. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：301 / 310

页数：10

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