Li^+,Na^+∥CO_3^(2-),B_4O_7^(2-)-H_2O四元交互体系288K的相平衡  

Equilibrium Phase Diagram of Li^+,Na^+∥, H_2O Quaternary System at 288 K

作　　者：桑世华[1] 殷辉安[2] 唐明林[2] 张允湘[1] 

机构地区：[1]四川大学化工学院,成都610064 [2]成都理工大学应用化学系,成都610059

出　　处：《物理化学学报》2002年第9期835-837,共3页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金(49773200)资助项目~~

摘　　要：采用等温溶解平衡法对Li^+,Na^+∥CO_3~2-,B_4O_7~2--H_2O四元体系进行288K相平衡研究.结果表明,该体系属简单共饱型,在288K等温溶解度相图中有二个共饱点,五条单变量曲线,平衡固相为Na2CO3·10H2O,Li2B4O7·3H2O,Na2B4O7·10H2O,Li2CO3.In this paper, the solubility of Li+,Na+∥, H2O quaternary system at 288 K has been determined by isothermal equilibrium method. Based on the solubility data, the phase diagram of the system has also been plotted, in which there are two invariant point E and F(see Fig.1), five univariant curves E1F, E2F, E3E, E4E and EF, and four crystallization fields: Na2CO3·10H2O,Li2B4O7·3H2O,Na2B4O7·10H2O, Li2CO3.

关 键 词：水盐体系 相平衡 硼酸盐 盐湖 碳酸盐 卤水 

分 类 号：TS311[轻工技术与工程]