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进行了 L i Cl_ Mg Cl2 _ H2 O体系的参数化工作 ,得到了该体系在 40°C时 Mg Cl2 的单盐参数、两离子和三离子相互作用参数 θli Mg和 ψL i Mg Cl,以及三种复盐的溶解平衡常数 Ksp( Mg Cl2 · 6 H2 O) ,Ksp( L i Cl· Mg Cl2 · 7H2 O) 和Ksp( L i Cl2 · H2 O) 。利用得到的参数 ,预测该体系在 40°C时的溶解度 ,获得满意结果。本研究工作为 HCl- L i Cl- Mg Cl2 - H2 O四元体系 40°C时的溶解度计算提供了最基本的、必需的参数。将 Pitzer模型从室温推广到高温时的溶解度预测 ,结果对盐湖资源中 L i Cl和 Mg Cl2 的提取工艺具有重要的指导意义。将计算机技术应用到了实验研究中 ,减少了繁重的实验测定工作
The parameterization work of LiCl_ MgCl_2_H 2 O system was carried out. The single salt parameter of MgCl_2, the interaction parameters of two ions and three ions, θli Mg and ψLi MgCl, at 40 ° C, Kib (MgCl 2 · 6 H 2 O), Ksp (L i Cl · Mg Cl 2 · 7H 2 O) and Ksp (LiCl 2 · H 2 O) were used for the double salts. Using the obtained parameters, the solubility of the system at 40 ° C was predicted and satisfactory results were obtained. This work provides the most basic and necessary parameters for the calculation of the solubility of HCl-LiCl-Mg Cl2-H2O quaternary system at 40 ° C. The Pitzer model is extended from room temperature to high temperature solubility prediction, the results of the L i Cl and Mg Cl2 extraction process of salt lake resources has an important guiding significance. The computer technology applied to the experimental research, reducing the cumbersome experimental determination