Experimental and Modeling of Vapor鈥揕iquid Equilibria for Electrolyte Solution Systems

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• 作者：Xianzhen Xu ; Yangdong Hu ; Lianying Wu ; Suhong Zhang
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2014
• 出版时间：November 13, 2014
• 年：2014
• 卷：59
• 期：11
• 页码：3741-3748
• 全文大小：314K
• ISSN：1520-5134

文摘

Vapor鈥搇iquid equilibrium (VLE) data are reported for binary and mixed electrolyte solutions containing CaCl₂, MgCl₂, K₂SO₄, MgSO₄, and KCl at total molality of salt between (0.0 and 12.0) mol路kg^鈥?. The measurements were carried out with a pressure between (6.3 and 101.3) kPa in a computer-controlled glass apparatus. An activity coefficient model based on the hypothesis of hydration was deduced in this paper. Experimental data and literature data for 20 salts, with temperature spanning from (273.15 to 415.85) K, were successfully correlated using the developed model. Meanwhile, the model was also successfully applied to predict the VLE data in mixed electrolyte solution systems with the binary parameters.