高镁、锂比盐湖卤水提锂研究

Research on Extraction from Salt Lake Brine with High Mg/Li Ratio

我国盐湖卤水中锂资源丰富,性能优越广泛应用于多个领域,而高镁、锂比是我国盐湖的重要特点,如何使镁锂分离成为我国锂资源利用亟需解决的一个重要技术问题。文章介绍了我国近几年从高镁、锂比卤水中提锂的方法,包括沉淀法、溶剂萃取法、离子交换吸附法等。溶剂萃取法在高镁、锂比卤水中提锂效率最高,具有重要的研究前景。在高镁、锂比卤水中更加快速、节能的提取锂,深入开展对锂、镁分离创新工艺技术研究,是今后研究的重点。

Salt lake brine is rich in lithium resources of China, the application of lithium and its compounds are widely used in many fields. There are large amount of lithium resources in China with a character of high ratio of Mg/Li, so lithium and magnesium separation and recovery has be- come the pressing problem to us. In the paper, the processes and techniques for lithium recovery from salt lake brine with high Mg/Li ratio were introduced, such as precipitation method, absorption method and extraction method, etc. Solvent extraction in the brine of high Mg/Li ratio have the highest efficiency of lithium and important research prospects. It is the focus of the research in the future of extraetting lithium in the brine of high Mg/Li ratio rapidly and efficiently, depth study the technology research of separating the lithium and magnesium.