FIELD: metallurgy.
SUBSTANCE: method involves construction of a non-permeable base, backfilling of dump, erection of spray systems of leaching and collection of production solutions, oxidation of sulphide mineralisation and further ore carburisation. Besides, oxidation of sulphide mineralisation is initiated by supply of acid solution to the built dump till pH value is 4.0-8.0. Calcium hypochlorite or sodium hypochlorite is used as an oxidiser.
EFFECT: increasing gold extraction degree.
2 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| EXTRACTION METHOD OF METALS FROM METAL-CONTAINING MINERAL RAW MATERIAL | 2010 |
|
RU2476610C2 |
| HEAP BIOLOGICAL LEACHING LEAN REFRACTORY MINERAL RAW MATERIALS OF NATURAL AND TECHNOGENIC ORIGIN | 2017 |
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RU2538435C2 |
| METHOD OF PRECIOUS METALS RECOVERY FROM HEAP LEACHING ROBBED-OUT BINGS | 2015 |
|
RU2622534C2 |
| HYDROMETALLURGICAL METHOD OF EXTRACTING PRECIOUS METALS FROM PERSISTENT SULFIDE ORE | 1993 |
|
RU2086682C1 |
| PROCEDURE FOR EXTRACTION OF GOLD FROM REFRACTORY CLAY ORE | 2010 |
|
RU2431689C1 |
| METHOD OF HEAP LEACHING OF GOLD OUT OF OXIDISED AND MIXED ORES | 2007 |
|
RU2361076C1 |
| HYDROMETALLURGICAL METHOD FOR DEVELOPING PERSISTENT COPPER-GOLD SULFIDE CONCENTRATES | 2002 |
|
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| METHOD OF MANGANESE HEAP BIOLEACHING OF MANGANESE-CONTAINING MATERIALS | 2018 |
|
RU2686158C1 |
| METHOD FOR EXTRACTING GOLD FROM SULPHIDE ORES | 2011 |
|
RU2465354C1 |
