锂印迹技术在锂萃取分离中的研究进展

Research Progress of Lithium Ion-imprinted Technique in Lithium Extraction and Separation

中文关键词:  萃取分离  液相  萃取法  锂离子印迹

英文关键词:Extraction separation  Liquid phase  Extraction method  Lithium-ion imprinting

中文摘要:

      锂作为当今一种重要的能源金属，已经与国民经济以及人们的日常生活变得密不可分。从液态锂资源(盐湖卤水、海水及锂矿酸性浸取液)中提锂是今后的发展大势。锂印迹技术是一种极具潜力的液相锂萃取分离技术，有望从复杂液态锂环境中选择性提锂，在简化工序的同时降低提锂成本。分析了目前用于提锂的捕获单元(冠醚、杯芳烃及离子筛)以及当前锂印迹聚合物的相关研究，可为研发新型锂印迹材料、搭建实用型锂萃取分离体系提供借鉴，推动表面离子印迹技术在液态锂资源萃取领域的发展。

英文摘要:

      Lithium， serving as an important energy metal nowadays， has got closely related with national economy and human daily life. Lithium extraction from liquid lithium resources including seawater， salt lake brine as well as acid leach solution of lithium ores gradually becomes the prevailing trend. The application scope of solution-adsorption techniques is wide， of which lithium-imprinted technique can be a potential lithium extraction separation technology. It is expected to simplify the lithium extraction process and reduce lithium extraction cost. This paper aims at analyzing the capture units including crown ether， calixarene and ion sieve， and the existing relevant researches on lithium-imprinted polymers， and then provides reference for developing novel lithium ion-imprinted materials as well as constructing practical extraction separation system， overcomes inherent defects of conventional adsorption methods， promotes the development of surface ion imprinting technique in the field of liquid lithium resource extraction.