Abstract
The recovery of scandium from the wastes of the production of uranium, titanium, iron–vanadium, and alumina is studied. The applied acid schemes of scandium transfer to a solution followed by ion-exchange recovery and extraction concentration of scandium ensure the precipitation of crude scandium oxides containing up to 5% Sc2O3. Scandium oxides of 99.96–99.99% purity are formed after additional refining of these crude oxides according to an extraction technology using a mixture 15% multiradical phosphine oxide or Cyanex-925 + 15% tributyl phosphate in kerosene.
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Original Russian Text © T.V. Molchanova, I.D. Akimova, K.M. Smirnov, O.K. Krylova, E.V. Zharova, 2017, published in Metally, 2017, No. 2, pp. 11–16.
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Molchanova, T.V., Akimova, I.D., Smirnov, K.M. et al. Hydrometallurgical methods of recovery of scandium from the wastes of various technologies. Russ. Metall. 2017, 170–174 (2017). https://doi.org/10.1134/S0036029517030065
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DOI: https://doi.org/10.1134/S0036029517030065