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.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF HEAP LEACHING OF METALS FROM DIFFICULTY PERMEABLE HIGHLY ARGILLACEOUS ROCKS | 2000 |
|
RU2186964C2 |
| METHOD OF HEAP LEACHING OF METALS UNDER CONDITIONS | 2000 |
|
RU2183743C2 |
| METHOD OF HEAP LEACHING OF METALS FROM SANDY-ARGILLACEOUS ROCKS UNDER SUBZERO AMBIENT TEMPERATURES | 2001 |
|
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| METHOD FOR GROUP LIXIVIATION OF METALS FROM FROZEN ROCKS | 2003 |
|
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| METHOD FOR LIXIVIATION OF METALS FROM HARD-TO-PENETRATE ORES WITH HIGH CONTENT OF CLAY | 1995 |
|
RU2083814C1 |
| METHOD FOR MASSIVE LIXIVIATION OF METALS UNDER CONDITIONS OF PERMAFROST | 2002 |
|
RU2235872C2 |
| METHOD FOR PILE LIXIVIATION OF METALS UNDER CONDITIONS OF PERMAFROST | 2002 |
|
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| METHOD FOR EXTRACTION OF METALS OF SLIGHTLY PERMEABLE CLAY ORES | 1995 |
|
RU2094500C1 |
| METHOD FOR GROUP LIXIVIATION OF METALS FROM FROZEN ROCKS | 2003 |
|
RU2249105C1 |
| METHOD OF METALS HEAP LEACHING | 2000 |
|
RU2186207C2 |
