从浓缩盐湖卤水中萃取分离锂的实验研究

Abstract

Abstract:

Lithium was extracted by solvent extraction method from the concentrated high Mg/Li ratio brine from a salt lake in Qinghai Province,China.The influences of concentration of the extracting agent,the phase ratio of organic/aqueous（O/A）,the acidity[H ⁺] of brine and other related factors on lithium extraction efficiency were investigated systematically.The lithium-rich organic phase was back extracted and the influences of back extraction phase ratio and the concentration of HCl（back extractant） on the back extraction of lithium-loaded organic phase were also investigated.The extraction technology has a good application prospect for the separation of lithium from the high Mg/Li brine.

Key words: high Mg/Li brine, solvent extraction, lithium separation efficiency

CLC Number:

TQ131.11

Zhang Yongxing,Ma Yameng,Zhang Lizhen,Zhang Xiufeng,Tan Xiumin. Experimental research on extracting lithium from concentrated salt lake brine[J]. Inorganic Chemicals Industry, 2019, 51(3): 38-40.

Figures/Tables 4

References 11

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Inorganic Acid-Base-Salt Committee of CIESC

Experimental research on extracting lithium from concentrated salt lake brine

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