Collect. Czech. Chem. Commun. 1981, 46, 194-200

Extraction of Am(III) by benzyldibutylamine from nitrate solutions of lanthanides

Marta Vojtíškováa, Věra Jedinákováa and Libor Kučab

a Nuclear Research Institute, 25068 Řež
b Department of Nuclear Fuel Technology and Radiochemistry, Institute of Chemical Technology, 166 28 Prague


Benzyldibutylamine is a suitable extractant for the separation of Am(III) and Ln(III) from the acidic nitrate solutions. The effect of lanthanides and yttrium on the extraction of Am(III) has been followed under the conditions modelling the content of these components in the spent nuclear fuel. The separation factors αAm/Ln were evaluated for the optimum conditions found for the separation of Am(III) from the lanthanides. The coextraction of nitric acid and water into the organic phase is discussed.