FIELD: metallurgy.
SUBSTANCE: method includes the red mud leaching by the carbonate solutions, while simultaneous aeration of the slime pulp with the gas-air mixture, containing CO2. The red mud leaching is conducted with the initial ultrasonic pulp treatment in the presence of ion exchanger. The slime pulp is separated from the ion exchanger after leaching.
EFFECT: increase of the scandium recovery and improvement of the leaching process kinetics.
2 cl, 2 ex
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