FIELD: heavy non-ferrous metals hydraulic metallurgy, method is used in production of nickel, cobalt, manganese for clearance of non-ferrous metals solutions from iron. SUBSTANCE: in process of non-ferrous metals solutions clearance from iron by its settling as settler they use barium hydroxide, that is introduced with speed of 0.3 - 1.0 g/l per minute. EFFECT: improved process. 2 cl, 1 tbl
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