含HCl四元水盐体系溶解度预测及其在工艺上的应用: HCl-LiCl-H2O体系0°C和20°C溶解度预测

Prediction of Solubilities in Quaternary HCl-Salt System and Its Application in Chemical Technology: Prediction of the Solubilities of HCl-LiCl-H2O System at 0°C and 20°C

中文关键词:  Pitzer模型,体系,参数化,溶解度预测

英文关键词:System  Parameterazition  Solubility prediction

中文摘要:

      利用文献数据 ,结合 pitzer方程 ,进行了 HCl- L i Cl- H2 O体系的参数化工作 ,得到了该体系在 0°C和 2 0°C时 HCl、Li Cl的单盐参数以及两离子和三离子相互作用参数共 10个。利用得到的参数 ,预测该体系在 0°C和 2 0°C时的溶解度获得满意结果。为盐水体系物理化学性质的计算提供了最基本的参数。将 Pitzer模型从室温推广到其它温度时的溶解度预测 ,结果对盐湖资源中用酸法提取 Li Cl的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

英文摘要:

      The ten parameters which represent the ion-interactions of HCl-LiCl-H2O system at 0°C and 20°C were obtained by applying Pitzer’s Model and thermodynamic data presented in the literatures. The solubilities of the system at 0°C and 20°C were successfully predicted by using above mentioned parameters. The study provided the basic parameters to the thermodynamic properties of water-salt systems. The prediction is of great significance in extraction various salts from brine. Combining the computer technology with the experimental study, a lot of hand works were reduced.