FIELD: non-ferrous and ferrous metallurgy.
SUBSTANCE: treatment of industrial and domestic wastewater. An aqueous solution containing 3 g/dm3 HCl, 240 g/dm3 NaCl or 240 g/dm3 KCl, as well as cobalt (II) ions, are subjected to contact with the extractant - tributyl phosphate (TBP), which is introduced portionwise at a temperature of 60°C. The mixture is stirred, settled and the phases are separated.
EFFECT: increasing the efficiency of cobalt extraction from aqueous solutions and reducing extractant consumption.
1 cl, 3 dwg, 4 tbl, 3 ex
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