ФОСФОРИЛИРОВАННЫЕ КИСЛОТНЫЕ ПОДАНДЫ: ЭКСТРАКЦИОННЫЕ И КОМПЛЕКСООБРАЗУЮЩИЕ СВОЙСТВА ПО ОТНОШЕНИЮ К АКТИНИДАМ И ЛАНТАНИДАМ

Abstract

The optimal conditions for the extraction of U(VI), Th(IV), and La(III) from nitric acid media by phosphorylated acidic podands were determined In this work by varying the length of the polyester chain that binds aromatic fragments; the most effective podand 1,5-bis[o-(hydroxyethoxyphosphoryl )-phenoxy]-3-oxapentane with diethylene glycol chain -(OCH2CH2)2O-. The composition and proposed structure of extractable U(VI) and Nd(III) complexes with 1,5-bis[o-(dihydroxyphosphoryl)phenoxy]-3-oxapentane were studied by physico-chemical analysis methods.