Separation and Concentration of Uranium from Acidic Eluate

Abstract

A new glycine-N, N-bis (methylene phosphonic acid) type chelating resin and an anion exchange resin were used to separate uranium from the acidic eluate that had been obtained in the extraction process of uranium from natural sea water by using cross-linked poly (acryl amidoxime) resin. The uranium contained in the eluate was concentrated as much as 20-100 times at the first concentration step with the chelating resin, and then 20-30 times at the second one with the anion exchange resin. Through these concentration steps, about 4g yellow cake (ADU) was obtained from natural sea water.