Co-precipitation of plutonium(IV) and americium(III) from nitric acid-oxalic acid solutions with bismuth oxalate

被引：4
|
作者：
Noronha, D. M. [1 ]
Pius, I. C. [1 ]
Chaudhury, Satyajeet [1 ]
机构：
[1] Bhabha Atom Res Ctr, Fuel Chem Div, Bombay 400085, Maharashtra, India
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 313卷 / 03期
关键词：
Co-precipitation; Plutonium; Americium; Bismuth oxalate; Anion exchange; EXTRACTION; HYDROLYSIS; SORPTION; REMOVAL; PU(IV);
D O I：
10.1007/s10967-017-5348-1
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Co-precipitation of plutonium and americium from nitric acid-oxalic acid solutions with bismuth oxalate has been investigated for the removal of these long lived alpha-active nuclides from plutonium oxalate waste solutions and anion exchange effluents respectively. Strong co-precipitation of Pu(IV) and Am(III) with bismuth oxalate from a wide range of nitric acid and oxalic acid concentrations indicate feasibility of direct treatment of oxalate waste solutions and anion exchange effluents by this method. Co-precipitation of Am(III) from high nitric acid concentrations is poor, however, this could be effectively achieved, after partially neutralizing the acid with ammonia.
引用
收藏
页码：523 / 529
页数：7
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