| abstract |
FIELD: rare metal technology. n SUBSTANCE: hydrochloric acid solution containing 1.5-2.0 mole/L HCl, plutonium and neptunium in presence of reducing agent is passed through phytosorbent (Titosorb-728) to bind neptunium(IV) while plutonium(III) remains in sorbate in concentration 2 . 10 -3 %. Column is then washed to desorb neptunium. Advantage of the method consists in that separation is performed in a single sorption cycle without preliminary reduction and stabilization of plutonium and neptunium in required valent forms. n EFFECT: simplified technology, increased separation efficiency, and reduced separation time. n 2 cl |