FIELD: metallurgy.
SUBSTANCE: proposed method comprises bringing solvent extraction agent and aqueous solution in contact, mixing, settling and separation of organic and aqueous phases. Note here that said bringing solvent extraction agent and aqueous solution in contact is performed using vegetable oils as said solvent extraction agent. Process proceeds at water-to-organic phase ratio W:O ≤ 7, pH 9-13 and adjustment of pH for not over 1.5 hours.
EFFECT: higher efficiency and safety.
6 dwg, 5 ex
