METHOD FOR HEAP LEACHING OF METALS FROM HARDLY PERMEABLE HIGH-CLAYEY ROCKS

摘要

FIELD: mining. ^ SUBSTANCE: method for increased efficiency of heap leaching of metals from hardly permeable high-clayey rocks under conditions of permafrost includes formation of antifiltration foundation of leached rock stack, displacement of leached rocks to antifiltration foundation, supplying leaching solutions of reagents into stack to dissolve metals from mining mass. On the opposite side of antifiltration foundation there is stack formed of glacier snow with the help of sprinkler as temperatures of ambient air go negative. Afterwards leached rocks and glacier snow are mixed and placed onto antifiltration foundation, where new stack is erected. Leaching is carried out as warm season of the year comes. ^ EFFECT: increased filtration ability.