玻利维亚Uyuni盐湖卤水25℃等温蒸发实验  

Study on the Isothermal Evaporation of Uyuni Salt Lake Brine,Bolivia at 25℃

作　　者：李陇岗 LI Long-gang(Qinghai CITIC Guoan Technology Development Co.,Ltd,Golmud 816000,China;Qinghai Key Lab of Sulfate Type Salt Lakes Utilization,Golmud 816000,China)

机构地区：[1]青海中信国安科技发展有限公司,青海格尔木816000 [2]硫酸盐型盐湖资源综合利用青海省重点实验室,青海格尔木816000

出　　处：《盐湖研究》2021年第2期44-49,共6页Journal of Salt Lake Research

摘　　要：本文开展了玻利维亚Uyuni盐湖卤水25℃等温蒸发实验研究。参考Na^(+)、K^(+)、Mg^(2+)/Cl^(-)、SO_(2)-4-H_(2)O五元体系298K(介稳)相图和Li^(+)、Mg^(2+)/Cl^(-)、SO_(2)-4-H_(2)O四元交互体系298K(介稳)相图进行了理论分析,利用X射线衍射测试了析出矿物的物相,结合化学分析结果,研究了该卤水在等温蒸发过程盐类矿物的结晶路线和析出顺序,为Uyuni盐湖卤水的综合利用提供基础数据。The isothermal evaporation of Uyuni salt lake brine in Bolivia at 25℃was studied in this paper,the crystallization paths and the precipitation regularities of salts were theoretically determined by solubility phase diagram of Na^(+),K^(+),Mg^(2+)∥Cl^(-),SO_(2)-4—H_(2)O quinary system and Li^(+)、Mg^(2+)/Cl^(-)、SO_(2)-4—H_(2)O quaternary system at 25℃.After that the crystallization paths and the precipitation regularities of salts in process of isothermal evaporation were confirmed through XRD and Chemical analysis.The paper provided basic data for utilization of elements such as potassium,lithium,magnesium,boron and bromine in Uyuni salt lake brine.

关 键 词：玻利维亚Uyuni盐湖 等温蒸发 结晶路线 矿物析出顺序 

分 类 号：O642.542[理学—物理化学]