METHOD FOR LIXIVIATION OF METALS FROM ORES IN PIT EDGES Russian patent published in 2007 - IPC E21B43/28 E21C41/26 

FIELD: mining industry, in particular, technology for extracting mineral resource deposits, possible use for extracting ores of balance and over-balance resources during extraction of mineral resources.

SUBSTANCE: method includes preparing the massif, supplying reagents, draining solutions, sedimentation of useful components. Ore sections of useful components are detected in massif beyond limits of pit contour above the level of depression cone. These massif portions in pit sides are subjected to explosive crushing, well is drilled to upper area of each prepared ore section, and then lixiviation solutions with reagents are fed into the well. Solutions, self-flowing downwards along ore section, lixiviate metal and then enter common flow of underground waters, formed by depression cone. Sedimentation of metal is performed in the pit on geo-chemical barrier, in place of common exit of subterranean waters.

EFFECT: ensured fullness of extraction and high efficiency when completing a formation in accordance to open method.

3 cl, 2 dwg