FIELD: metallurgy.
SUBSTANCE: proposed method comprises irradiating ores by SHF-field and processing them by acid and/or oxidiser solution to transfer noble metals into solution. Prior to irradiation by SHF-field initial material is subjected to fractionation in upflow with variable hydrodynamic conditions at linear speed of said upflow of 10-50 m/h to produce concentrated fraction. Concentrated fraction is subjected to said irradiation. Note here that irradiation is executed in microwave range at load that allows heating the materials to 180-280°C. Then, noble metals are leashed into solution.
EFFECT: higher yield of noble metals.
1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR EXTRACTION OF LOW-DIMENSIONAL STRUCTURES OF NOBLE METALS FROM CARBON FEEDSTOCK | 2022 |
|
RU2799219C1 |
| METHOD OF EXTRACTING NOBLE METALS FROM ORES AND CONCENTRATES | 2018 |
|
RU2689487C1 |
| METHOD OF ENRICHMENT OF PERSISTENT BASE ORES AND EXTRACTION FROM IT OF PRECIOUS METALS | 2008 |
|
RU2375475C1 |
| METHOD FOR PROCESSING LOW-MAGNETIC CARBON CONTAINING RAW MATERIALS | 2018 |
|
RU2677391C1 |
| METHOD OF PROCESSING COMPLEX GOLD-BEARING ORES, CONCENTRATES AND SECONDARY RAW STOCK | 2011 |
|
RU2467802C1 |
| HEAP BIOLOGICAL LEACHING LEAN REFRACTORY MINERAL RAW MATERIALS OF NATURAL AND TECHNOGENIC ORIGIN | 2017 |
|
RU2679724C1 |
| PROCEDURE FOR PROCESSING PERSISTENT URANIUM CONTAINING PYRITE AND VALUABLE METALS OF MATERIALS FOR EXTRACTION OF URANIUM AND PRODUCTION OF CONCENTRATE OF VALUABLE METALS | 2009 |
|
RU2398903C1 |
| METHOD OF GOLD RECOVERY FROM SOLID SILVER-CONTAINING SULFIDE ORES OF CONCENTRATES AND OF SECONDARY RAW MATERIALS | 2017 |
|
RU2657254C1 |
| METHOD OF DISPERSE GOLD EXTRACTION FROM REFRACTORY ORE AND MAN-MADE MINERAL STOCK | 2013 |
|
RU2509166C1 |
| METHOD OF LEACHING AND EXTRACTION OF GOLD AND SILVER FROM PYRITE CINDER | 2019 |
|
RU2721731C1 |
