FIELD: mining.
SUBSTANCE: invention relates to a method of leaching of valuable minerals from a permeable ore body or from the solid particles obtained from the ore containing components of metal carbonates and sulphides. The method comprises initial leaching of carbonates by water leachant containing the acid selected for dissolution of carbonates, but not sulphides, at controlling of level of leaching for avoidance of CO2 gas release in an ore body. Then sulphides are leached by a water leachant containing a salt of multivalent metal capable to oxidation of sulphides in soluble oxidation products. Then extraction of the required valuable metals from separate products of leaching is performed.
EFFECT: exception of blocking in the depths of the flow channel preventing leaching of all required valuable metals.
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| Title | Year | Author | Number |
|---|---|---|---|
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| METHOD FOR EXCAVATION OF USEFUL MINERALS | 0 |
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SU1721221A1 |
