FIELD: hydrometallurgy of precious metals; extraction of gold at heat leaching-out of gold-containing ores by cyanide solutions.
SUBSTANCE: proposed method includes additional dissolving of oxygen in cyanide solution in the amount of 33-38 mg/l for obtaining required degree of extraction of gold in product solutions equal to 80% during 10-15 days of leaching-out of crushed ore. Expenses for oxygen do not exceed 1.1.5 rubles/t of ore.
EFFECT: increased productivity; increased extraction of gold into product solutions.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CYANIDE LEACHING OF GOLD IN ORE PILES | 2004 |
|
RU2268317C2 |
| METHOD OF HEAP LEACHING GOLD | 2017 |
|
RU2680120C1 |
| REMOVAL METHOD OF GOLD FROM REFRACTORY ORES BY HEAP LEACHING | 2012 |
|
RU2538435C2 |
| METHOD OF HEAP LEACHING GOLD FROM ORES | 2015 |
|
RU2603411C1 |
| METHOD FOR EXTRACTION OF DISPERSE GOLD FROM REFRACTORY ORES AND TECHNOGENIC MINERAL RAW MATERIAL | 2011 |
|
RU2490345C1 |
| METHOD OF HEAP LEACHING OF GOLD FROM ORES, TAILS, AND CONCENTRATES | 1995 |
|
RU2086686C1 |
| METHOD OF DISPERSE GOLD EXTRACTION FROM REFRACTORY ORE AND MAN-MADE MINERAL STOCK | 2013 |
|
RU2509166C1 |
| METHOD OF HEAP LEACHING OF GOLD | 2004 |
|
RU2283882C2 |
| COMBINED METHOD OF HEAP LEACHING OF GOLD FROM REFRACTORY SULPHIDE ORES | 2012 |
|
RU2502814C2 |
| METHOD OF EXTRACTION OF DISPERSE GOLD FROM REFRACTORY ORES OF TECHNOGENIC MINERAL RAW MATERIALS (VERSIONS) | 2014 |
|
RU2566227C1 |
