Turnkey Process Equipment Solutions

Conversion of Li₂SO₄ Solution into Battery Grade Li₂CO₃

We provide complete process system for the production of lithium carbonate slurry used in battery manufacturing

After calcium removal through chelating resin and other purification steps, the lithium sulfate solution reacts with a prepared sodium carbonate solution in a lithium precipitation tank under controlled temperature. This reaction forms a lithium carbonate slurry rich in sodium sulfate. The slurry undergoes the first stage of centrifugal separation to yield crude lithium carbonate, which is then transferred to a first-stage washing tank. There, it is mixed with a pre-measured volume of second-stage washing liquid. The resulting slurry proceeds to a second centrifugation step to obtain partially purified lithium carbonate.

Next, the material enters a second washing tank, where it is mixed with pure water to remove remaining impurities. The resulting slurry then undergoes a third centrifugation to isolate the purified lithium carbonate. Final processing includes drying, sieving, iron removal, milling, blending, and packaging to produce battery-grade Li₂CO₃.