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计算了 HCl- Mg Cl2 - H2 O体系 2 5°C时溶解度以及 θHMg和 ΨHMg Cl各以± 10 %变动时 ,HCl- Mg Cl2 - H2 O体系 2 5°C时的溶解度变化。计算的结果表明 ,H和 Mg之间的两离子相互作用和 H,Mg和 Cl之间的三离子相互作用对体系中 Mg Cl2 的溶解度有极大的影响。在 HCl的浓度最大时 ,这两种相互作用近似相等。当这两种相互作用同时增加或同时减小时 ,体系的溶解度几乎不发生变化 ;但当一种作用增加 ,另一种作用减小时 ,体系的溶解度会发生根本变化。该结果为后续工作—— H+ ,L i+ ,Mg2 + /Cl- - H2 O四元体系 2 5°C时组分溶解度预测奠定了基础 ,大大减少了锂资源开发中的实验工作量
The solubility of HCl-MgCl 2 - H 2 O system at 25 ° C and the change of solubility of θHMg and ΨHMgCl by ± 10% were calculated. The calculated results show that the two-ion interaction between H and Mg and the three-ion interaction between H, Mg and Cl have a great influence on the solubility of MgCl 2 in the system. At the maximum HCl concentration, the two interactions are approximately equal. When these two interactions increase at the same time or decrease at the same time, the solubility of the system hardly changes; however, the solubility of the system will change fundamentally when one kind of action increases and the other action decreases. The results laid the foundation for the follow-up work - component solubility prediction at 25 ° C for the H +, Li +, Mg2 + / Cl- - H2O quaternary systems and greatly reduced the experimental workload in the development of lithium resources