FIELD: metallurgy.
SUBSTANCE: method includes drying of an industrial massif of stale tailings of upstream impoundments. Then the thickness of tailings is divided into non-productive strata including lean tailings from the upper part of the industrial massif, not exposed to hypergene changes, and productive strata from the base of the industrial massif enriched with gold and formed in the process of hypergene conversion. Then the circuit of the hypergene converted stratum is established. Afterwards tailings of upper non-productive strata are removed, and tailings of hypergene converted strata are processed. Processing is carried out by leaching with gold extraction. Gold extraction from tailings of hypergene converted productive strata is carried out with cyanidation.
EFFECT: invention provides for growth of gold production in sufficiently short periods due to simplified process cycle and reduction of time for preparation of secondary raw materials for processing.
3 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| EXTRACTION METHOD OF IRON-ORE CONCENTRATE FROM AGED ALLUVIAL TAILINGS OF WET MAGNETIC SEPARATION OF IRON ORES OF SKARN-MAGNETITE TYPE | 2013 |
|
RU2520229C1 |
| METHOD TO PRODUCE METALS FROM STORAGES OF STALE WASTES OF POLYMETAL ORE DRESSING | 2012 |
|
RU2490465C1 |
| METHOD OF PRECIOUS METALS RECOVERY FROM HEAP LEACHING ROBBED-OUT BINGS | 2015 |
|
RU2622534C2 |
| METHOD OF MANGANESE HEAP BIOLEACHING OF MANGANESE-CONTAINING MATERIALS | 2018 |
|
RU2686158C1 |
| HEAP BIOLOGICAL LEACHING LEAN REFRACTORY MINERAL RAW MATERIALS OF NATURAL AND TECHNOGENIC ORIGIN | 2017 |
|
RU2679724C1 |
| DRESSING MODULE FOR COMBINED PROCESSING OF PERMAFROST TAILINGS FROM DRESSING OF IMPREGNATION COPPER-NICKEL ORES OF NORILSK DEPOSITS | 2011 |
|
RU2504437C2 |
| METHOD OF BATH-WELL LEACHING OF METALS | 2011 |
|
RU2475639C2 |
| METHOD FOR COMPREHENSIVE DEVELOPMENT OF COMPLEX ORE FIELDS | 2006 |
|
RU2327873C1 |
| METHOD OF GOLD RECOVERY FROM SOLID SILVER-CONTAINING SULFIDE ORES OF CONCENTRATES AND OF SECONDARY RAW MATERIALS | 2017 |
|
RU2657254C1 |
| COMPLEX PROCESSING METHOD OF AGED TAILS OF BENEFICATION OF TUNGSTEN-CONTAINING ORES | 2009 |
|
RU2403296C1 |
