首页|利用树脂分离法在沉锂母液中回收锂的方法及应用

利用树脂分离法在沉锂母液中回收锂的方法及应用

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在生产电池级碳酸锂的过程中副产的沉锂母液Li+浓度为 1~2 g/L,钠锂比为 10~30,CO32-浓度为 10~20 g/L.介绍了一种采用锂钠分离工艺实现在沉锂母液中高效提锂的方法,并结合实际生产数据对特效树脂的实际应用效果进行研究.结果表明,在实际生产中,沉锂母液经锂钠分离系统处理后获得的合格液钠锂比大幅降低,Li+回收率达到 95%以上.
Method and application of recovering lithium from submerged lithium mother liquor by resin separation method
The by-product mother liquor of Li2CO3 with Li+concentration of 1~2 g/L,sodium-to-lithium ratio of 10~30,and CO32-concentration of 10~20 g/L are generated during the production of battery-grade lithium carbonate.This paper introduces a method for efficient lithium recovery in mother liquor of Li2CO3 using a lithium-sodium separation process,and investigates the practical application effects of the special resin based on actual production data.The results demonstrate that,in practical production,the qualified liquid obtained from the lithium-sodium separation system significantly reduces the sodium-to-lithium ratio,and achieves the Li+recovery rate of over 95%.

Mother Liquor of Li2CO3Adsorption resinLithium extraction from salt lakes

张发海、张学鹏、黄宇华、夸吉多主

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格尔木藏格锂业有限公司 青海 格尔木 816000

沉锂母液 特效树脂 盐湖提锂

2024

石化技术
中国石化集团资产经营管理有限公司北京燕山石化工分公司

石化技术

影响因子:0.261
ISSN:1006-0235
年,卷(期):2024.31(11)