| Citation: | ZHANG Xiufeng, TAN Xiumin, LIU Weizao, WANG Wei, ZHANG Lizhen. Current Status and Research Progress of Lithium Extraction Technology from Ore[J]. Conservation and Utilization of Mineral Resources, 2020, 40(5): 17-23. doi: 10.13779/j.cnki.issn1001-0076.2020.05.003 |
Lithium is an indispensable critical mineral raw material for the development of new energy industries. With the rapid development of new energy vehicles and energy storage industries, lithium consumed in rechargeable lithium batteries is increasing year by year. In 2018, the lithium consumption of the lithium battery industry accounted for 56%, exceeding the total lithium consumption of other industries. However, the output of lithium extraction from ore has exceeded the output of lithium extraction from brine since 2018. The proportion of lithium extraction from ore will continue to increase in the future. Because of the pivotal status of lithium extraction from ore, this paper summarizes the lithium extraction technologies from rock minerals such as spodumene, lepidolite, zinnwaldite, petalite and amblygonite, and discusses the research progress of lithium extraction technologies such as sulfuric acid method, lime sintering method, sulfate method, chlorination roasting method and pressure cooking method. It is pointed out that the future trend of lithium extraction from ore is to reduce energy consumption and cost.
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Schematic diagram for Li recovery from spodumene treated by sulfuric acid method[7]
Schematic diagram for Li extraction from lepidolite by sulfuric acid leaching[7, 20]
Schematic diagram for Li extraction from lepidolite by the Sileach process[27]