FIELD: hydrometallurgy of extraction of non-ferrous, rare-earth and noble metals from rebellious raw materials containing natural carbon or other rebellious compounds.
SUBSTANCE: proposed method includes treatment of rebellious carbon-containing mineral raw material by oxygen-containing oxidant followed by extraction of noble metal compounds from liquid phase. Treatment of carbon-containing mineral raw material by oxygen-containing oxidant is carried out in presence of reductants possessing donor-acceptor properties which are expressed in the fact that at first stage of chemical reactions, reductants give off their electrons to oxygen-containing oxidant, forming stronger oxidant as compared with first one in form of short-lived radicals and intermediate products of oxidation of donor-acceptor reductants which are also used as oxidants.
EFFECT: increased extraction of non-ferrous, rare-earth and noble metals; low cost of process.
3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PROCEDURE FOR EXTRACTION OF FERROUS, RARE, RADIOACTIVE AND PRECIOUS METALS FROM REFRACTORY MINERAL RAW STOCK | 2007 |
|
RU2415953C2 |
| PROCEDURE FOR EXTRACTION OF PRECIOUS METALS FROM REFRACTORY ORE AND CONCENTRATES | 2007 |
|
RU2415955C2 |
| METHOD OF PROCESSING SULPHIDE MINERALS AND CONCENTRATES | 2003 |
|
RU2331675C2 |
| EXTRACTION METHOD OF PRECIOUS METALS FROM ORES AND CONCENTRATES | 2012 |
|
RU2479650C1 |
| METHOD FOR POCESSING SULPHIDE GOLD AND COPPER FLOAT CONCENTRATE | 2019 |
|
RU2749310C2 |
| EXTRACTION METHOD OF METALS FROM METAL-CONTAINING MINERAL RAW MATERIAL | 2010 |
|
RU2476610C2 |
| METHOD OF LEACHING METALS FROM REFRACTORY CARBONACEOUS ORES (VERSIONS) | 2016 |
|
RU2635582C1 |
| METHOD OF TREATING HEAT-RESISTING MINERAL METAL-CONTAINING RAW | 2004 |
|
RU2265068C1 |
| METHOD OF HYDROMETALLURGICAL RECOVERY OF RARE METALS FROM TECHNOLOGICALLY PERSISTENT RAW MATERIAL | 1995 |
|
RU2114196C1 |
| METHOD FOR PROCESSING OF REBELLIOUS SILVER-, GOLD-CONTAINING MATERIALS, ORES AND CONCENTRATES | 1993 |
|
RU2033446C1 |
