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