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

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作者：
Santos, G.R. [1 ]
D'Avila, S.G. [1 ]
Aznar, M. [1 ]
机构：
[1] Depto. de Processos Químicos, (FEQ) UNICAMP, Universidade Estadual de Campinas, C. P. 6066, CEP 13081-970, Campinas - SP, Brazil
来源：
Brazilian Journal of Chemical Engineering | 2000年 / 17卷 / 04期
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摘要：
Liquid-liquid equilibrium data for the water/ethanol/1-pentanol/potassium bromide systems were experimentally determined at -25°C and -40°C. 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.
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页码：721 / 734
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