Extracting uranium values

摘要

Uranium values are recovered from a solution containing hexavalent uranium by converting to uranyl nitrate using beryllium nitrate and extracting with tributyl phosphate or methyl isobutyl ketone. The solution is particularly that formed by dissolution of a ceramic containing uranium in e.g. hydrofluoric acid, as described in the parent Specification and usually contains beryllium. Quadrivalent uranium is first oxidized using KMnO4 or H2O2.