Salt effect of KBr on the liquid-liquid equilibrium of the water/ethanol/1-pentanol system

被引：16

作者：

Santos, GR ^{[1
]}

d'Avila, SG ^{[1
]}

Aznar, M ^{[1
]}

机构：

[1] Univ Estadual Campinas, UNICAMP, FEQ, Dept Processos Quim, BR-13081970 Campinas, SP, Brazil

来源：

BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING | 2000年 / 17卷 / 4-7期

关键词：

experimental; liquid-liquid equilibrium; electrolytes; group contribution;

D O I：

10.1590/S0104-66322000000400036

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Liquid-liquid equilibrium data for the water/ethanol/1-pentanol/potassium bromide systems were experimentally determined at 25 degreesC and 40 degreesC. The experimental data were correlated through the NRTL and UNIFAC-Dortmund models for the activity coefficient, with the estimation of new binary interaction parameters for both models, corresponding to the salt-solvent and solvent-solvent interactions For the NRTL model and the ion-ion and solvent-ion interactions for the UNIFAC-Dortmund model. The results obtained have shown that the NRTL model was more able to represent equilibrium data for the studied systems.

引用

页码：721 / 734

页数：14

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