FIELD: metallurgy.
SUBSTANCE: invention relates to method of treatment of resistant sulphide-oxidised copper ores, as well as analogous concentrates, containing different forms of sulphide minerals and noble metals. Treatment method of resistant copper raw material containing noble metals includes leaching in water solution of sulphur acid at its concentration not less than 60 g/dm3. Leaching is implemented at atmospheric pressure at presence of hydrogen peroxide and ions of ferric iron with conversion of copper into liquid phase. After leaching it is implemented separation of liquid and solid phases and extraction of metals from it. Additionally from solid phase it is implemented extraction of noble metals and copper by means of flotation in sulphuric acid at pH not more than 2.
EFFECT: increasing of copper and noble metals extraction ratio.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR HYDROMETALLURGICAL REPROCESSING OF SULFIDE CONCENTRATES | 2007 |
|
RU2339706C1 |
| PROCESSING METHOD OF SULPHIDE-OXIDATED COPPER ORES WITH COPPER AND SILVER EXTRACTION | 2009 |
|
RU2439177C2 |
| METHOD OF PROCESSING COPPER-ZINC PRODUCTS CONTAINING NOBLE METALS | 2007 |
|
RU2366736C2 |
| METHOD OF PRODUCTION OF CATHODE COPPER OUT OF SULPIDE OXIDISED COPPER ORES | 2007 |
|
RU2336345C1 |
| METHOD FOR COMPLEX PROCESSING OF SULPHIDE-OXIDISED COPPER-PORPHYRITIC ORES | 2018 |
|
RU2685621C1 |
| METHOD OF PRODUCTION OF CATHODE COPPER OUT OF SULPHIDE OXIDISED COPPER ORES | 2007 |
|
RU2336344C1 |
| METHOD OF PROCESSING OF SULPHIDE OXIDISED COPPER ORES | 2007 |
|
RU2337160C1 |
| METHOD OF PROCESSING OF SULPHIDE-OXIDISED COPPER ORES | 2007 |
|
RU2337159C1 |
| METHOD FOR PROCESSING MIXED COPPER ORES CONTAINING PRECIOUS METALS | 2009 |
|
RU2404269C1 |
| PROCEDURE FOR PROCESSING MIXED COPPER ORE | 2009 |
|
RU2418872C2 |
