(Liquid plus liquid) equilibria of aqueous solutions of butyric acid with n-heptane and toluene at T = (298.2, 308.2, and 318.2) K

被引：24

作者：

Gilani, H. Ghanadzadeh ^{[2
]}

Gilani, A. Ghanadzadeh ^{[1
]}

Janbaz, M. ^{[1
]}

机构：

[1] Univ Guilan, Dept Chem, Fac Sci, Rasht 41335, Iran

[2] Univ Guilan, Dept Chem Engn, Fac Engn, Rasht 41635, Iran

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2013年 / 57卷

关键词：

(Liquid plus liquid) equilibrium; Ternary mixture; Butyric acid; NRTL model; UNIQUAC model; PHASE-EQUILIBRIA; TERNARY-SYSTEM; DIETHYL SUCCINATE; WATER TOLUENE; CYCLOHEXANE; GLUTARATE;

D O I：

10.1016/j.jct.2012.08.029

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Solubility and tie line data for the (water + butyric acid + n-heptane) and (water + butyric acid + toluene) ternary systems were determined at T = (298.2, 308.2, and 318.2) K and atmospheric pressure. Solubility data were obtained by the cloud-point titration method. The concentration of each phase was determined by acidimetric titration, the Karl-Fischer technique, and refractive index measurements. The experimental tie-line data were correlated using the UNIQUAC and NRTL thermodynamic models. The reliability of the experimental data was determined through the Othmer-Tobias and Hand plots. Distribution coefficients and separation factors were evaluated for each system over the immiscibility regions. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：152 / 159

页数：8

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