| 硫酸钠亚型盐湖卤水不同温度下Li+富集、结晶行为研究——以西藏拉果错盐湖为例 |
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| 关键词:sodium sulfate subtype enrichment of Li evaporation saturation point concentration entropy |
| 基金项目:中国科学院青海盐湖研究所“135”项目(编号: Y460351119) |
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| Li+ Enrichment Behavior of Sodium Sulfate in the Saline Lake Brine at Different Temperatures: The Case of Laggor Salt Lake Brines in Tibet |
| The Laggor Salt Lake in Tibet belongs to sodium sulfate subtypes saline lake, whose brine has valuable components such as potassium、lithium and boron. It is therefore very important to study the concentration process of lithium. Through isothermal evaporation process for sodium sulfate subtypes of salt lake brine, the authors made a comparative study of the enrichment regularity and saturation points of lithium at different temperatures. Lithium is crystallized in the form of Li2SO4H2O, Li2SO4?3Na2SO4?12H2O, Li2SO4?Na2SO4 and Li2SO4?3K2SO4 by evaporation. On such a basis, the authors established the correlation between lithium and sulfate concentration and, according to the composition and temperature, calculated the concentration entropy. The equation expressing the relationship between the lithium saturation point and concentration entropy was also simulated. Using the equation, the authors controlled the separation of lithium salt and obtained high lithium brine, thus providing the basis for enrichment of lithium and efficient use of salt lake resources from sodium sulfate subtypes salt lake. |
| MA Yan-fang,ZHANG Zhi-hong,LI Kan-she,DONG Sheng-fa,FU Zhen-hai,HU Tian-qi.2016.Li+ Enrichment Behavior of Sodium Sulfate in the Saline Lake Brine at Different Temperatures: The Case of Laggor Salt Lake Brines in Tibet[J].Acta Geoscientica Sinica,37(3):307-312. |
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