溶剂萃取法分离锂同位素研究进展  

A Review of Separation of Lithium Isotopes by Solvent Extraction

作　　者：肖江[1,2] 贾永忠[1] 姚颖[1] 石成龙[1] 孙进贺[1] 谢绍雷[1] 景燕[1] 

机构地区：[1]中国科学院青海盐湖研究所,青海西宁810008 [2]中国科学院大学,北京100049

出　　处：《盐湖研究》2016年第3期62-72,共11页Journal of Salt Lake Research

基　　金：国家自然科学盐湖专项基金(U140710047)

摘　　要：锂同位素(6Li和7Li)在原子能工业中占据着重要的地位。在众多锂同位素的分离方法和体系中,溶剂萃取法是一种具有较高分离系数,并最有望实现无毒、高效分离的工业生产方法。阐述了溶剂萃取法分离锂同位素的原理,综述了醇类与酮类、烷基膦与膦酸脂类、冠醚类及其它溶剂萃取体系在锂同位素分离中的研究现状及趋势,并展望了溶剂萃取法在锂同位素分离和未来青海、西藏盐湖锂资源高值化利用中的潜在应用前景。The two naturally occurring isotopes of lithium （6Li and 7Li） occupy important roles in the a- tomic energy industry. Among the methods for the separation of lithium isotopes, solvent extraction is a method which not only have a higher isotope separation factor, but also is the most promising method expected to achieve industrial production with nontoxicity and higher efficient. Hence, in this paper, we simply illustrate the method of solvent extraction separation of lithium isotopes, and summarizes the alcohols and ketones, the alkylphosphines and phosphonates, the crown ethers and the other solvent extraction systems in the separation of lithium isotope. We also prospect its potential applications in separation of lithium isotopes and to develop a high-value utilization of lithium resources in salt lakes of Qinghai and Tibet.

关 键 词：锂同位素 分离 溶剂萃取 

分 类 号：O614.111[理学—无机化学]