Separation of neptunium (IV) from actinides by solid phase extraction using a resin containing Aliquat 336

被引：19
作者：
Mahanty, Bholanath [1 ]
Bhattacharyya, Arunasis [1 ]
Mohapatra, Prasanta Kumar [1 ]
机构：
[1] Bhabha Atom Res Ctr, Radiochem Div, Bombay 400085, Maharashtra, India
来源：
JOURNAL OF CHROMATOGRAPHY A | 2018年 / 1564卷
关键词：
Uranium; Neptunium; Plutonium; Nitric acid; Extraction chromatography; NUCLEAR WASTE SOLUTIONS; NITRIC-ACID; N; N'; N'-TETRAOCTYL DIGLYCOLAMIDE; STATIONARY-PHASE; METAL-IONS; CHROMATOGRAPHY; PLUTONIUM; PHOSPHATE; BEHAVIOR; SYSTEM;
D O I：
10.1016/j.chroma.2018.06.026
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
An extraction chromatographic resin material containing Aliquat 336 as the liquid anion exchanger extractant and Chromosorb W as the solid support was prepared and tested for the uptake of UO22+, Np4+, Pu4+, and Pu3+ from nitric acid feed solutions. The resin beads were characterized by thermo-gravimetry/differential thermogravimetry (TG/DTG) and scanning electron microscopy (SEM) surface morphology analysis. The uptake trend for the metal ions from 3 M HNO3 was found to be Pu4+ >> Np4+ >> UO22+ > Pu3+ which clearly followed the trend of their ionic potentials. In view of the significant difference in the uptake of Np4+ with respect to those of UO22+ and Pu3+, a separation scheme was developed for the selective separation of Np from feeds containing U, Np and Pu in nitric acid. The purity of the product was verified by alpha spectrometry. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：94 / 101
页数：8
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