Comparative Studies on the Extraction of Protactinium Using Different Kinds of Organic Extractants

被引：8
作者：
El-Sweify, F. H. [1 ]
Abdel Fattah, A. A. [1 ]
Ali, S. M. [1 ]
机构：
[1] Atom Energy Author, Hot Labs Ctr, Radioisotopes Prod Div, Dept Nucl Chem, Cairo, Egypt
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2009年 / 44卷 / 03期
关键词：
HBr; HCl; HI; organic extractants; protactinium; SOLVENT-EXTRACTION; FISSION-PRODUCTS; AQUEOUS-MEDIA; HOLLOW FIBERS; ZIRCONIUM; PROTACTINIUM; CHELEX-100; SEPARATION; ACTINIDES; BEHAVIOR;
D O I：
10.1080/01496390802437016
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The extraction behavior of Pa(V) from various aqueous solutions was studied using different extractants, namely Amberlite-LA-2 (Amb-LA2), diethylhexyl phosphoric acid (HDEHP), tributylphosphate (TBP) and Tricaprylylmethyl ammonium chloride (TCMA) in toluene. The extraction was carried out from slightly acidic as well as strong acidic solutions of HCl, HBr, and HI, at various temperatures. The extracted species in every case were postulated. Extraction chromatography behavior of Pa(V), its homologue Nb(V), and the chemically similar elements Zr(IV) and Hf(IV) were also studied in the case of TCMA. Radioactive isotopes were used for tracing the corresponding elements. Some separation alternatives were achieved.
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收藏
页码：753 / 772
页数：20
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