DESORPTION BEHAVIOR OF PLUTONIUM FROM ANION-EXCHANGE RESIN WITH HNO3-HL MIXED ACID-SOLUTION

被引：1
|
作者：
USUDA, S
SAKURAI, S
HIRATA, M
UMEZAWA, H
机构：
[1] JAPAN ATOM ENERGY RES INST,DEPT ADM SERV,OARAI,IBARAKI 31113,JAPAN
[2] JAPAN ATOM ENERGY RES INST,DEPT RADIOISOTOPES,TOKAI,IBARAKI 31911,JAPAN
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 1990年 / 25卷 / 11-12期
关键词：
Ion Exchange Resins - Applications - Nitric Acid - Solutions;
D O I：
10.1080/01496399008051850
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The effect of HI on the desorption behavior of Pu from strongly basic anion-exchange resin in HNO3 solutions was investigated. The desorption of Pu increased with increasing concentration of HNO3 in HNO3-HI mixed acid solutions. On the other hand, it was difficult to elute Pu with the mixed acid solution containing more than 2.5 M HNO3 since HI decomposed vigorously in the resin column as the HNO3 concentration increased. The valence state of Pu in the effluent was a mixture of tri- and tetra-valences. The mixed acid solution, 1 M HNO3-0.l M HI, was found to be adequate as an eluent for effective desorption of Pu from the anion-exchange resin in HNO3 media. Purification procedures for Pu were developed for both micro- and macroamounts. © 1990, Taylor & Francis Group, LLC. All rights reserved.
引用
收藏
页码：1225 / 1237
页数：13
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