General comment Lepidolite is mined from the lepidolite mine in Yichun, Jiangxi, China (0.4~0.6% Li₂O). The beneficiation method involves roasting with sulfates, where lepidolite is mixed with potassium sulfate, sodium sulfate, or calcium sulfate and roasted at high temperatures. During the roasting process, lithium is replaced and converted into soluble lithium sulfate. After leaching with water or dilute acid and filtration, lithium is extracted. The relevant data comes from a typical lepidolite mine in Yichun, Jiangxi, China. Waste treatment is estimated based on the amount of ore and water usage. |