FIELD: metallurgy.
SUBSTANCE: invention relates to hydrometallurgy of precious metals and can be used namely for the extraction of precious metals at heap leaching of gold-containing clay rocks with cyanide solutions. A method of precious metals extraction from clay rocks involves pelletisation of granulated ore with cement, laying of a stock pile of the pelletised ore and leaching with cyanide solutions. The upper layer of the ore stock pile with the height of 0.2-0.5 m is laid with the ore pelletised with cement consumption increased by 10-40%.
EFFECT: increasing the leaching rate owing to increasing mechanical strength of pelletised particles of the upper layer of the ore stock pile.
2 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF HEAP LEACHING GOLD | 2017 |
|
RU2680120C1 |
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| METHOD FOR DEVELOPMENT OF DEPOSITS OF POTASSIUM SALTS AND GOLD | 1997 |
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| METHOD FOR EXTRACTING GOLD FROM ORE | 2000 |
|
RU2185453C1 |
