盐湖卤水锂提取技术研究进展

doi:10.19964/j.issn.1006-4990.2024-0144

Abstract

Abstract:

With the booming development of new energy technologies in recent years，the global demand for lithium products has increased dramatically.Due to the current situation of lithium resource endowment in China，salt lake brine has become an important source of lithium extraction.Overview of research progress on lithium extraction from salt lake brine is of great significance to the development of lithium resources in China′s salt lake brine.This work focused on membrane separation，adsorption，solvent extraction，electrochemical methods，etc.，suitable for high magnesium-to-lithium ratio brines，as well as salt gradient solar cell and precipitation methods suitable for low magnesium-to-lithium ratio brines.The advantages and disadvantages of the methods were analyzed from various aspects such as technological characteristics，performance，and extraction rate，etc.Based on the different performance of salt lake lithium extraction technologies，the adsorption coupling membrane separation method and other combined processes were discussed to have the advantages in industrialized lithium extraction from salt lake brine.Based on the existing lithium extraction technology，the ideas and directions for the development of lithium extraction from salt lake brine in China were put forward.

Key words: salt lake brine, Mg-lithium ratio, lithium extraction, industrialization

CLC Number:

TQ131.11

KONG Lingjie, LI Guangbi, XIE Jiahao, YANG Xinhui, BAI Xiaoqin. Research progress on lithium extraction technology from salt lake brine[J]. Inorganic Chemicals Industry, 2025, 57(1): 14-26.

Figures/Tables 8

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盐湖	企业名称	提锂技术
扎布耶盐湖	西藏日格则扎布耶锂业高科技有限公司	太阳池法、纳滤膜法
拉果错盐湖	西藏阿里拉果资源有限责任公司	沉淀法
龙木错盐湖	西藏国能矿业发展有限公司	吸附法
捌千错盐湖	金圆环保股份有限公司	电化学脱嵌法
结则茶卡盐湖	西藏国能矿业发展有限公司	萃取法、纳滤膜法
察尔汗盐湖	青海盐湖蓝科锂业股份有限公司	吸附耦合膜法
西台吉乃尔盐湖	青海中信国安锂业发展有限公司	吸附法、离子膜电渗析法
东台吉乃尔盐湖	东台吉乃尔锂资源有限责任公司	离子膜电渗析法
一里坪盐湖	五矿盐湖有限公司	梯度耦合膜法
大柴旦盐湖	兴华锂盐有限公司	萃取法

类别	优点	缺点
锰系吸附剂	成本低、可再生利用	循环稳定性差、溶损严重
钛系吸附剂	耐酸性好、锂洗脱率高、性质稳定	吸附容量低、吸附速率慢、吸附周期长、溶损大
铝系吸附剂	选择性高、无溶损	结构不稳定、应用可加工性差、吸附量小

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Research progress on lithium extraction technology from salt lake brine

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