FIELD: metallurgy.
SUBSTANCE: proposed method comprises leaching by chloride solution at feed of oxygen and chlorine. Then, copper is precipitated from said solution to obtain copper sulfide cake and said solution of cleaned of iron, zinc and cobalt. after cleaning nickel is electrically extracted from the solution while effluent is processed to recover chlorine and alkali. Note here that leaching is performed in two steps with solution backflow. Note here that only oxygen is fed to said first step while only chlorine is fed to said second step.
EFFECT: ruled out losses of nonferrous metals, lower costs.
5 cl, 5 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| MANUFACTURING METHOD OF CONCENTRATE OF PRECIOUS METALS FROM SULPHIDE COPPER-NICKEL RAW MATERIAL | 2010 |
|
RU2444573C2 |
| METHOD FOR REPROCESSING OF FUSED COPPER-NICKEL SULFIDE ORES CONTAINING COBALT, IRON AND PLATINUM GROUP METALS | 2003 |
|
RU2252270C1 |
| PROCEDURE FOR PRODUCTION OF NICKEL AND CONCENTRATE OF PRECIOUS METALS OUT OF COPPER-NICKEL MATTE | 2009 |
|
RU2415956C1 |
| METHOD OF PROCESSING OF FEED STOCK CONTAINING PRECIOUS METALS AND SULPHIDES | 2013 |
|
RU2547056C1 |
| METHOD OF LEACHING PYRITE CONTAINING RAW MATERIALS | 2017 |
|
RU2651017C1 |
| METHOD FOR REPROCESSING OF METAL SULFIDE-CONTAINING PRODUCTS | 2003 |
|
RU2245380C1 |
| METHOD OF COMPLEX PROCESSING OF PYRITIC RAW MATERIALS | 2016 |
|
RU2627835C2 |
| METHOD OF PROCESSING SULPHIDE CONCENTRATES CONTAINING PYRRHOTINE, PYRITE, CHALCOPYRITE, PENTLANDITE AND PRECIOUS METALS | 2019 |
|
RU2712160C1 |
| PROCEDURE FOR PROCESSING RESIDUES OF CARBONYL NICKEL SYNTHESIS | 2009 |
|
RU2398030C1 |
| COMBINED METHOD OF HEAP LEACHING OF GOLD FROM REFRACTORY SULPHIDE ORES | 2012 |
|
RU2502814C2 |
