FIELD: processing of waste.
SUBSTANCE: invention relates to extracting a transition metal from cathodic materials containing nickel and lithium. The method includes treating a transition metal oxide material containing lithium with a leaching agent, adjusting the pH to between 2.5 and 8, removing precipitates of phosphates, tungstate, oxides, hydroxides, or oxyhydroxides of Al, Fe, Zr, Zn, Ca, or Cu, or combinations of at least two of the above, treatment of the resulting solution with metallic nickel, cobalt or manganese, or a combination of at least two of the above.
EFFECT: extraction of transition metals with the minimum allowable traces of impurities.
14 cl, 1 ex
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Number |
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RU2501124C1 |
