| 摘要 |
<p>hydrometallurgy of non-ferrous metals. SUBSTANCE: process of precipitation of non-ferrous metals from solutions includes treatment of solution with pulp of calcium thioculfate prepared in advance as result of reactions of solution of sulfur in aqueous suspension of lime and oxidation of obtained solution by oxygen-carrying gas which contains solution of calcium tiosulfate in liquid component and calcium, elementary sulfur and sulfite sulfur in solid component. EFFECT: reduced usage of precipitant and decreased cost of process. 3 tbl</p> |
