Study on uranium recovery from tungsten residue: separation of U from Fe, Mn, Zr, Ti, Th, and Sc with mixture of N235 and TBP

Mixture of N235 and TBP was applied for the separation of UFe/MnZrTiThSc by extracting U and Fe from hydrochloric acid medium. Then, acetic acid was utilized to scrub impurities from the loaded organic phase. The extraction was investigated at different concentrations of TBP, N235, hydrochloric acid, metal ions and extraction times. And the scrubbing of metal impurities was studied at different concentrations of acetic acid and scrubbing times. Finally, a process for uranium recovery from tungsten residue has been developed, generating with a final product U 3 O 8 of 99.7 % purity and an overall uranium recovery of 91.8 %.