期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：310
期号：4
页码：1-6
DOI：10.1088/1755-1315/310/4/042023
出版社：IOP Publishing
摘要：N substitutent group structure has great influence on the extraction and separation ability of amide extractant. In this paper, four different extractants with different structures, namely TODGA (N,N,N',N'-tetraoctyl-3-oxa-diglycolamide), T2EHDGA (N,N,N',N'-tetraisooctyl-3-oxa-diglycolamide), DPDODGA (N,N'-dipropyl-N,N'-dioctyl-3-oxa-diglycolamide) and DIPDODGA (N,N'-diisopropyl-N,N'-dioctyl-3-oxa-diglycol-amide) were investigated. The extraction ability of rare earth elements in nitric acid system was investigated to understand the relationship between chemical structure of the extractant and the extraction and separation properties of rare earth ions. The effects of nitric acid acidity, rare earth metal ion concentration and extractant concentration on the extraction were also investigated.
