The sustainable supply of lithium carbonate in China - Extracting brine-type lithium resource from salt lakes in the Qinghai-Xizang Plateau
文献类型： 外文期刊
作者： Yin, Zhenzhou 1 ; Zhao, Yimo 1 ; Wang, Gang 1 ; Guo, Bin 1 ; Sun, Jian 2 ; Ji, Puhui 1 ;
作者机构： 1.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China
2.Jilin Acad Agr Sci, Inst Agr Qual Stand & Testing Technol, Changchun 130000, Peoples R China
关键词： New energy material; Extraction process; Life cycle assessment; Market environment; Policy support
期刊名称：SUSTAINABLE MATERIALS AND TECHNOLOGIES （ 影响因子：9.2； 五年影响因子：9.8 ）
ISSN： 2214-9937
年卷期： 2025 年 45 卷
页码：
收录情况： SCI
摘要： China is facing severe carbon emission reduction tasks, it has a huge lithium carbonate (Li2CO3) supply gap. Salt lakes in the Qinghai-Xizang Plateau (Q-X-P) have abundant lithium resource reserves. Extracting brine-type lithium resource in Q-X-P provides a sustainable Li2CO3 supply approach in China. In this study, we have collected 51 salt lakes in Q-X-P. The natural conditions, extraction processes, market environment and relevant policies for extracting brine-type lithium resource from these salt lakes were analyzed. The results showed that the average altitude of these salt lakes has reach 4548.96 m, 76.47% of salt lakes are located in arid areas, 84.31% of salt lake distribution areas have freeze-thaw erosion, high ecological sensitivity areas account for 68.63%. The concentration of Li+ accounts for 0.44% of salinity in these salt lakes. Based on above conditions, many extraction processes have been applied to extract Li2CO3 from these salt lakes. Life cycle assessment results showed that selecting appropriate extraction process based on natural conditions can effectively reduce resource consumption, ecological risks and environmental impacts in the production process. In addition, current market environment and relevant policies provide favorable conditions for the development of brine-type lithium resource extraction industry in Q-X-P. This will promote technological innovation and production capacity upgrades in related fields. In the future, the investment in brine-type lithium resource extraction industry in Q-X-P should be increased to achieve a sustainable supply of Li2CO3 to the Chinese market.
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