FIELD: metallurgy.
SUBSTANCE: procedure consists in leaching crumbled minerals with water solution of hydrochloric acid, in separation of solid phase and liquid phase products and in successive extraction of target components. As source minerals there are used poly-metallic slag of lead production additionally containing compounds of germanium. Leaching is performed with solution of hydrochloric acid of concentration from 6 to 30 wt % at ratio of solid and liquid phases 1:(1-5). Before separation of solid phase and liquid phase products ratio of solid and liquid phases is brought to 1: (8-20) by addition of water with transition of iron, zinc, and calcium into liquid phase product, while silicon and germanium - into solid phase product.
EFFECT: simplified extraction of target components.
3 cl, 2 ex
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