Inorganic Chemicals Industry ›› 2024, Vol. 56 ›› Issue (4): 1-7.doi: 10.19964/j.issn.1006-4990.2023-0481

• Reviews and Special Topics •     Next Articles

Research progress of lithium-rich sulfate type salt lake brine evaporation experiment

YANG Yousheng(), YAO Zhihao, ZHAO Zhixing, FENG Xia, ZENG Ying, YU Xudong()   

  1. College of Materials and Chemistry & Chemical Engineering,Chengdu University of Technology,Chengdu 610059,China
  • Received:2023-10-09 Online:2024-04-10 Published:2024-04-18
  • Contact: YU Xudong E-mail:yangyoushengc413@126.com;xwdlyxd@126.com

Abstract:

With the proposal of “dual carbon” goal,the application of lithium in the field of new energy materials has received great attention,and the demand for lithium has shown explosive growth.The world's lithium resources are mainly composed of ore lithium and salt lake lithium.Salt lake lithium has become the focus of future lithium resource development because of its large reserves, and therefore the sulfate type salt lake, which accounts for the largest proportion,has become the focus.Due to the significant difference in the composition of salt lake,and the special properties of sulfate type salt lake,lithium has multiple crystalline forms in the evaporation stage of saltpan and causes losses,which increases the difficulty of effective enrichment of lithium.The results of evaporation experiment of lithium-rich sulfate salt lakes were summarized,the law of crystallization salt evolution during evaporation based on the phase diagram was analyzed and summarized,with a focuses on the concentrated state of lithium and the crystalline form of lithium,providing reference for the development of lithium resources in sulfate salt lakes.

Key words: lithium, sulphate salt lakes, brine evaporation, salt precipitation law, phase diagram

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