Metal extraction by N,N′-dialkyl-N,N′-diaryl-dipicolinamides from nitric acid solutionsстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 9 апреля 2021 г.
Аннотация:A study of americium, uranium and europium extraction by various dialkyl-diarylamides of 2,6-pyridine-dicarboxylic (dipicolinic) acid has shown that maximum extractability is achieved by using polar fluorine-substituted diluents. Generally, the diamide extractability is found to increase with the alkyl radical length. We have demonstrated the possibility to separate Am and Eu in solutions with a nitric acid concentration of 0.5-2 mol/1. The extractability of these diamides with respect to the three metals rises with the acid concentration increase to 6 mol/1.