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酰胺荚醚萃取剂结构较简单,能直接用于中等浓度HNO3介质中Ln(Ⅲ)和Sr2+的萃取,这类试剂水溶性小,辐照稳定性好,合成方法简单、成本低,且不含P,可彻底焚烧,具有良好的应用前景。通过对各种结构的酰胺荚醚的研究,目前主要认为N,N,N′,N′-四辛基-3-氧戊二酰胺(TODGA)最有应用前景。本工作研究了以正十二烷为稀释剂时,该萃取体系在硝酸介质中对碱土金属的萃取
The amide pod ether extractant has a simple structure and can be directly used for the extraction of Ln (Ⅲ) and Sr2 + in medium-concentration HNO3 media. These reagents have small water solubility, good irradiation stability, simple synthesis method, low cost and no P, can be completely incinerated, has good application prospects. At present, it is mainly considered that N, N, N ’, N’-tetraoctyl-3-oxoglutaric acid amide (TODGA) has the most promising application. This work studied the n-dodecane as a diluent, the extraction system in nitric acid medium for alkaline earth metal extraction