气候变化领域集成服务门户(CCPortal): Study of the optimization of the stereo-crystallization process with enhanced salinity-gradient solar pond for lithium extraction from Zabuye salt lake in Tibet

CCPortal

DOI	10.1007/s13146-024-00921-0
	Study of the optimization of the stereo-crystallization process with enhanced salinity-gradient solar pond for lithium extraction from Zabuye salt lake in Tibet
	Wu, Qian; Bu, Lingzhong; Zhang, Jintao; Zhang, Ke; Yu, Jiangjiang; Li, Juntao; Solange, Deji; He, Zhikui; Nie, Zhen
发表日期	2024
ISSN	0891-2556
EISSN	1878-5212
卷号	39 期号:2
英文摘要	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 consumption. China has abundant lithium resources, especially in salt lake brine. Zabuye salt lake is the only salt lake in Tibet that has achieved the industrial development of lithium carbonate by using the lithium extraction technique with salinity-gradient solar pond (SGSP) so far. In this paper, the stereo-crystallization process is innovated and optimized based on an enhanced SGSP with nucleation matrix. The optimal processing parameters such as the structure design of the nucleation matrix, the spatial range of underutilized heterogeneous nucleation zone (UHNZ), and the appropriate area ratio of crystallization units have been obtained by experiments. The results show that the UHNZ should be about 0.80-2.00 m from the bottom of the pond, when the total depth of water body in the solar pond is controlled within 2.80-3.30 m and the thickness of the freshwater layer is between 0.30 and 0.60 m. For the best precipitation effect of lithium carbonate, it is suggested that the height of lower nucleation matrix (LNM) in the crystallization unit should be controlled above the height of about 0.80 m from the bottom of the pond, and the area ratio of crystallization units should be about 10%, when implementing the stereo-crystallization process. In 2022, the stereo-crystallization process with the enhanced SGSP has been fully promoted and implemented in Zabuye mining area of Tibet, increasing the output and grade of lithium concentrates significantly.
关键词	Salinity-gradient solar pond Stereo-crystallization process Nucleation matrix Lithium carbonate Zabuye salt lake
英文关键词	EXPLOITATION
WOS研究方向	Geology
WOS记录号	WOS:001163904300001
来源期刊	CARBONATES AND EVAPORITES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282947
作者单位	China Geological Survey; Chinese Academy of Geological Sciences
推荐引用方式 GB/T 7714	Wu, Qian,Bu, Lingzhong,Zhang, Jintao,et al. Study of the optimization of the stereo-crystallization process with enhanced salinity-gradient solar pond for lithium extraction from Zabuye salt lake in Tibet[J],2024,39(2).
APA	Wu, Qian.,Bu, Lingzhong.,Zhang, Jintao.,Zhang, Ke.,Yu, Jiangjiang.,...&Nie, Zhen.(2024).Study of the optimization of the stereo-crystallization process with enhanced salinity-gradient solar pond for lithium extraction from Zabuye salt lake in Tibet.CARBONATES AND EVAPORITES,39(2).
MLA	Wu, Qian,et al."Study of the optimization of the stereo-crystallization process with enhanced salinity-gradient solar pond for lithium extraction from Zabuye salt lake in Tibet".CARBONATES AND EVAPORITES 39.2(2024).