abstract |
A PROCESS FOR THE RECOVERY OF URANIUM VALUES FROM URANIUM CARRYING EXTRACTS CONTAINING A DIALKYLPHOSPHORIC ACID AND A TRIALKYLPHOSPHINE OXIDE DISSOLVED IN AN ORGANIC SOLVENT IS DESCRIBED. THE PROCESS INVOLVES LIQUIDLIQUID EXTRACTION OF THE EXTRACTANTS WITH AN AQUEOUS SOLUTION CONTAINING DIVALENT IRON AND A COMPLEXING AGENT WHICH MAY BE EITHER PHOSPHORIC ACID, HYDROFLUORIC ACID OR MIXTURES THEREOF. |