Adsorption behaviors of trivalent actinides and lanthanides on pyridine resin in lithium chloride aqueous solution

被引：3
|
作者：
Suzuki, Tatsuya [1 ]
Tanaka, Maiko [1 ]
Ikeda, Yasuyuki [1 ]
Koyama, Shin-ichi [2 ]
机构：
[1] Tokyo Inst Technol, Nucl Reactors Res Lab, Meguro Ku, Tokyo 1528550, Japan
[2] Japan Atom Energy Agcy, Oarai Res & Dev Ctr, Oarai, Ibaraki 3111393, Japan
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2013年 / 296卷 / 01期
关键词：
Trivalent actinides; Lanthanide; Lithium chloride aqueous solution; Pyridine resin; RARE-EARTH-ELEMENTS; CHROMATOGRAPHIC-SEPARATION; TERTIARY; WASTE;
D O I：
10.1007/s10967-012-2011-8
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The adsorption behaviors of trivalent actinides and lanthanides on pyridine resin in lithium chloride aqueous solution were investigated. The adsorbed amounts of lanthanides and the degree of mutual separation of lanthanides increased with an increase in the concentration of lithium chloride in aqueous solution. The group separation of the trivalent actinides and lanthanides was observed. This separation phenomenon is similar in a hydrochloric acid solution. However, the adsorption behavior of lanthanides in lithium chloride is different from their behavior in a hydrochloric acid solution. This fact shows that the adsorption mechanisms of lanthanides in a lithium chloride aqueous solution and in a hydrochloric acid solution are different; the adsorption mechanisms are attributed to the ion exchange in a hydrochloric acid solution, and to the complex formation with pyridine group in a lithium chloride solution.
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页码：289 / 292
页数：4
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