FIELD: metallurgy.
SUBSTANCE: extraction method of nonferrous metals from ores includes separation of ore by fractions, leaching of fractions by solution of sulfuric acid and processing of efficient solution. Additionally ore is separated for fraction +0.5-2.0 mm and fraction -0.5 mm. Fraction +0.5-2.0 mm is subject to heap leaching. Fraction -0.5 mm is directed to grinding up to -0.2 mm and is leached at temperature 70-100°C in layer of acid solution of height not less than 5 metres.
EFFECT: increasing of extraction ratio of metals.
2 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF NICKEL EXTRACTION | 2007 |
|
RU2362817C2 |
| EXTRACTION METHOD OF METALS, MAINLY NICKEL AND COBALT, FROM OXIDISED ORES | 2013 |
|
RU2568223C2 |
| PROCEDURE FOR LEACHING NICKEL FROM OXIDISED NICKEL ORE | 2009 |
|
RU2412263C2 |
| METHOD OF NON-FERROUS METALS EXTRACTION | 2007 |
|
RU2362818C2 |
| EXTRACTION METHOD OF NICKEL FROM OXIDISED NICKEL ORES | 2010 |
|
RU2430172C1 |
| METHOD OF NICKEL EXTRACTION FROM OXIDE NICKEL ORE | 2007 |
|
RU2352656C1 |
| METHOD OF NICKEL EXTRACTION FROM ORE | 2007 |
|
RU2352653C1 |
| NICKEL RECOVERY FROM NICKEL ORE | 2007 |
|
RU2342447C1 |
| METHOD FOR UNDERGROUND LIXIVIATION OF NON-FERROUS METAL ORES | 2005 |
|
RU2293844C2 |
| METHOD FOR EXTRACTING OF NICKEL AND COBALT FROM NICKEL ORES | 2004 |
|
RU2267547C1 |
