abstract |
FIELD: nonferrous and ferrous metallurgy. SUBSTANCE: invention consists in that, in the extraction process, deviation of pH from its optimal value, in dependence on extraction time, is maintained according to the following relationship: ΔpH = ΔpH 0 exp(-kt m ). where ΔpH 0 is maximum deviation of pH from its optimal value in the initial time moment, t extraction time, k and m constants. EFFECT: intensified process. 10 dwg , 6 tbl |