ベンジルドデシルアミンによるウランの抽出,精製

抄録

Because of the superior selectivity of high molecular weight amines in the uranium extraction practice, many attentions have been recently paid to these compounds, especially the secondary benzyl branched alkyl amines.
However, fundamental studies on the extraction of uranium by secondary benzyl branched alkyl amines are meager.
Using benzyldodecylamine which is not so expensive and easily available in Japan, the authors have studied the effect of variables such as uranium loading, acid concentration and sulfate ion concentration on uranium extraction from acidic aqueous sulfate system. Uranium was effectively extracted in the concentration range of 0.11.0M/l sodium sulfate in the acidity range of 0.11.0N. Some further studies have been performed to extract uranium from highly concentrated solutions with concentrated benzyldodecylamine solution and to separate impurities contained in yellow cakes. It has been found that benzyldodecylamine is one of the useful solvents to refine yellow cakes.