Anion-exchange recovery of thorium from uranium: Analytical and preparation aspects

被引：0
作者：
B. M. Shavinskii
机构：
[1] Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk
来源：
Radiochemistry | 2003年 / 45卷 / 2期
关键词：
Chloride; Uranium; Ionic Strength; State Standard; Sorb;
D O I：
10.1023/A:1023877008197
中图分类号：
学科分类号：
摘要：
Recovery of thorium from U(VI) containing 20% 235U in 7 M HCl with AV-17-8 chs anion exchanger [GOST (State Standard) 20 301-74] was studied using a Ge-Li detector. An 1 cm column in diameter with 40-cm resin bed height ensures complete thorium separation from 1 g of U sorbed on the resin. This method is suitable both for monitoring in fuel elements Th, rare-earth elements, and the other impurities unsorbed with strongly basic anion exchangers and for preparing 231,234Th research generators. Thorium is not sorbed with the above resin from 11 M HCl. From published stability constants of Th chloride complexes, the thorium speciation in 4 M HCl (ionic strength μ = 4) was calculated.
引用
收藏
页码：146 / 148
页数：2
相关论文
共 23 条
[1]  
Kraus K.A., Moore G.E., Nelson F., J. Am. Chem. Soc., 78, 12, pp. 2692-2694, (1956)
[2]  
Milner G.W.C., Edwards J.W., Anal. Chim. Acta, 17, 2, pp. 259-263, (1957)
[3]  
Milner G.W.C., Nunn J.H., Anal. Chim. Acta, 17, 5, pp. 494-499, (1957)
[4]  
Kunte N.S., Sen D., Curr. Sci., 27, 3, pp. 94-95, (1958)
[5]  
Tomic E., Ladenbauer I.-M., Pollak M., Z. Anal. Chem., 161, 1, pp. 28-38, (1958)
[6]  
Brody J.K., Faris J.P., Buchanan R.F., Anal. Chem., 30, 12, pp. 1909-1912, (1958)
[7]  
Yoshimura J., Waki H., Bull. Chem. Soc. Jpn., 35, 3, pp. 416-419, (1962)
[8]  
Kunte N.S., Singh R.A., J. Ind. Chem. Soc., 40, 7, pp. 597-598, (1963)
[9]  
Birks F.T., Weldrick G.H., Thomas M.A., Analyst, 89, 1054, pp. 36-41, (1964)
[10]  
Buksak D., Chow A., Radiochem. Radioanal. Lett., 8, 1, pp. 7-9, (1971)
123