FIELD: mining.
SUBSTANCE: invention refers to mining and can be implemented for underground leaching of non-ferrous metals, particularly, of nickel. According to the method of underground leaching of oxidised nickel ores, containing ferrous and magnesia ores, at first there is determined approximate profile of division between ferrous and magnesia ores. Injection and evacuation boreholes pass through an ore body; also the continuous part of a cased pump in evacuation boreholes is assembled in layers of ore with index of geo-chemical zonality exceeding 0.8. A perforated section of the cased pipe is installed lower; direct sulfuric acid leaching during not less, than 30 days and successive collection of productive solution is performed thereafter.
EFFECT: development of efficient method of underground leaching of non-ferrous metal ores.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR UNDERGROUND LEACHING OF NICKEL | 2006 |
|
RU2381355C2 |
| PROCEDURE FOR LEACHING NICKEL FROM OXIDISED NICKEL ORE | 2009 |
|
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| METHOD FOR UNDERGROUND LIXIVIATION OF NON-FERROUS METAL ORES | 2005 |
|
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| EXTRACTION METHOD OF NICKEL FROM OXIDISED NICKEL ORES | 2010 |
|
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| METHOD OF IN-SITU LEACHING OF OXIDISED NICKEL-COBALT ORES | 2012 |
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| EXTRACTION METHOD OF NONFERROUS METALS FROM ORES | 2007 |
|
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| METHOD FOR BORE-HOLE LEACHING OF HIGH-CLAYLY ORES | 1995 |
|
RU2092688C1 |
| METHOD OF NON-FERROUS METALS EXTRACTION | 2007 |
|
RU2362818C2 |
