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Solvent extraction chemistry in ionic liquids: An overview of f-ions
Journal of Molecular Liquids ( IF 6 ) Pub Date : 2021-09-17 , DOI: 10.1016/j.molliq.2021.117530
Maria Atanassova 1
Affiliation  

Undoubtedly, ionic liquids (ILs) belong to the most investigated solvent systems in the last two decades not only in the field of liquid–liquid extraction and separation chemistry of metallic species. Nowadays, the academic research interest is still significantly growing with an increased focus on developing such “smart” reagents for very specific applications. Interesting from the research point of view are solvent extraction systems capable of discriminating between metal ions from within, or between 4f and 5f elements that will be reviewed and discussed herein including the design of new ionic liquid compounds. Most of the investigations have been done for the first time suggesting novel, unfamiliar cutting-edge research investigating ideas. This paper reviews previous literatures and our recent results adopting ILs in metal liquid–liquid extraction systems until the end of year 2020 with an emphasis on the synergistic effect, where possible, and task-specific ILs together with some accidentally established enhancements. Finally, a critical analysis on the lanthanoids intra-group selectivity versus the extraction performance in an ionic medium and, on the other hand, the nature of the water-immiscible ionic diluents used have also been carried out and is here presented, and critically addressed.



中文翻译:

离子液体中的溶剂萃取化学:f-离子概述

毫无疑问,离子液体(ILs)属于过去二十年研究最多的溶剂系统,不仅在金属物质的液-液萃取和分离化学领域。如今,学术研究兴趣仍在显着增长,越来越关注为非常特定的应用开发此类“智能”试剂。从研究的角度来看,有趣的是能够从内部区分金属离子或 4f 和 5f 元素的溶剂萃取系统,本文将对其进行审查和讨论,包括新离子液体化合物的设计。大多数调查都是第一次完成,提出了新颖的、不熟悉的前沿研究调查思路。本文回顾了之前的文献和我们在 2020 年底之前在金属液-液萃取系统中采用 IL 的最新结果,重点是在可能的情况下的协同效应,以及特定任务的 IL 以及一些意外建立的增强功能。最后,对镧系元素在离子介质中的组内选择性与萃取性能进行了批判性分析,另一方面,还对所使用的与水不混溶的离子稀释剂的性质进行了批判性分析,并在此进行了介绍,并进行了批判性分析.

更新日期:2021-09-23
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