中国盐湖卤水提锂产业化技术研究进展

doi:10.19964/j.issn.1006-4990.2022-0542

Abstract

Abstract:

In recent years,the rapid development of new energy vehicles and energy storage technology driven by the new energy industry,has led to rapid growth in lithium salt consumption.At present,the global lithium salt industry is booming,and in the process of staking and rapidly expanding production.China has abundant lithium resources,especially in salt lake brine.Through years of technical research and industrialization practice,the lithium extraction technology from salt lake brine of China is gradually matured,and new technologies are emerging.Under the background of the hot global lithium salt market,lithium salt lake of China has the potential for rapid expansion.The lithium extraction technologies from salt lake brine that had been successfully industrialized in China were introduced,the advantages and disadvantages of each technology were analyzed,the new lithium extraction technologies that were under research and expected to achieve industrial application were discussed,and the development direction of lithium extraction technology from salt lake brine was judged.From the perspective of green and efficient lithium extraction process,the future development trend of lithium resource supply from salt lake was analyzed and prospected.Through the research,it was expected to have a clearer understanding of the technical status and technical development direction of the domestic lithium extraction industry from salt lake,and to provide the technical reference for the development of lithium salt lakes at home and abroad in the future.

Key words: salt lake brine, lithium resources, lithium extraction technology, industrialization

CLC Number:

TQ131.11

NIE Zhen, WU Qian, DING Tao, BU Lingzhong, WANG Yunsheng, YU Jiangjiang, HOU Xianhua. Research progress on industrialization technology of lithium extraction from salt lake brine in China[J]. Inorganic Chemicals Industry, 2022, 54(10): 1-12.

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盐湖	开发企业	产品	提锂技术	设计年产能	2021年产量
察尔汗盐湖	青海盐湖蓝科锂业股份有限公司	碳酸锂	吸附法	3	2.1
察尔汗盐湖	格尔木藏格锂业有限公司	碳酸锂	吸附法	1	1.0
东台吉乃尔盐湖	东台吉乃尔锂资源有限公司	电池级碳酸锂	离子膜电渗析法	1	0.3
东台吉乃尔盐湖	青海锂业有限公司	电池级碳酸锂	离子膜电渗析法	1	0.9
西台吉乃尔盐湖	青海中信国安锂业发展有限公司	电池级碳酸锂	煅烧法	1	0.4
西台吉乃尔盐湖	青海恒信融锂业科技有限公司	碳酸锂	纳滤膜法	2	—
一里坪盐湖	五矿盐湖有限公司	碳酸锂	耦合膜法	1	0.9
巴仑马海盐湖	青海锦泰锂业有限公司	氯化锂、碳酸锂	吸附法	0.56	0.1
大柴旦盐湖	青海柴达木兴华锂盐有限公司	氯化锂	萃取法萃取法	1	0.2
大柴旦盐湖	金昆仑锂业有限公司	金属锂	萃取法萃取法	0.15	—
合计				11.71	5.90

盐湖	所在位置	卤水类型	开发企业	开发进程	提锂技术	资源量
扎布耶	日喀则仲巴县	碳酸盐型	西藏日喀则扎布耶锂业高科技有限公司	开发（0.5万t/a碳酸锂）	太阳池法、纳滤膜法	211.71
麻米错	阿里改则县	硫酸钠亚型	西藏阿里麻米措矿业开发有限公司	中试研究	吸附法	250.11
拉果错	阿里改则县	硫酸钠亚型	西藏阿里拉果资源有限责任公司	中试研究	沉淀法	247.68
龙木错	阿里日土县	硫酸镁亚型	西藏国能矿业发展有限公司	产业化试验	吸附法	216.95
结则茶卡	阿里日土县	碳酸盐型	西藏国能矿业发展有限公司	产业化试验	纳滤膜法、萃取法	230.69
当雄错	那曲尼玛县	碳酸盐型	西藏旭升矿业开发有限公司	中试研究	吸附法	86.00
捌千错	阿里革吉县	硫酸钠亚型	金圆环保股份有限公司	产业化试验	电化学脱嵌法	18.60

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Research progress on industrialization technology of lithium extraction from salt lake brine in China

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