Extraction of the actinides and lanthanides by alkyl phenol sulfides

Mechanism of americium and rare earth elements extraction by sulfur-containing derivatives of alkylphenol in the presence of diverse complexing substances has been studied by the method of distribution using 13C NMR. It has been revealed that in the systems mentioned the elements are easily extracted by n-tert-butylphenol disulfide and its oligomer derivative octophor 10S at high pH values. The conclusion is made that alkylphenol sulfides extract trivalent actinides and lanthanides from complexing substances solutions with a high pH value in the form of stable chelates. 10 refs.; 2 figs