Abstract Experimental data and modelling of electrolyte solutions are important in different fields. Separation and purification of such materials depend on knowledge of solid-liquid equilibrium as well as the mathematical models allow the development of solution theories and process simulators. Therefore, the current work presents the study of NaCl, KCl and NH4Cl solubility in binary liquid solutions formed by water and methanol at temperatures ranging from 288.15 K to 328.15 K. Solubility decreases with increasing methanol concentration and increases with increasing temperature, with the exception of the NaCl, where the temperature has a minimum effect on its solubility. The modified Pitzer model was applied to describe the solid-liquid equilibrium and its successful implementation also described the salting-out precipitation by the addition of an anti-solvent.

中文翻译：

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NaCl、KCl 和 NH4Cl 在水和甲醇混合物中的盐析沉淀，由改进的 Pitzer 模型描述

摘要 电解质溶液的实验数据和建模在不同领域都很重要。此类材料的分离和纯化取决于固液平衡的知识以及数学模型允许开发解决方案理论和过程模拟器。因此，目前的工作提出了 NaCl、KCl 和 NH4Cl 在 288.15 K 至 328.15 K 温度范围内由水和甲醇形成的二元液体溶液中溶解度的研究。溶解度随着甲醇浓度的增加而降低，随着温度的升高而增加，除了NaCl，其中温度对其溶解度的影响最小。