FIELD: cobalt and nickel recovery from ores.
SUBSTANCE: claimed method includes ore granulation with sulfuric acid at stoichiometric ratio. Granules are baked at 650-7000C for 2.5-3.0 h up to soluble iron content of 1.0-3.0 % followed by leaching with water. Before baking granules are sulfated at 200-2500C for 1 h.
EFFECT: high yield metal recovery; decreased sulfuric acid consumption; granulated sulfated product without decomposition during leaching with water.
3 cl, 3 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR NICKEL AND OTHER METAL RECOVERY FROM OXIDIZED ORE | 2003 |
|
RU2245932C1 |
| METHOD OF REPROCESSING OF THE OXYGENATED NICKEL-COBALT ORES | 2004 |
|
RU2287597C2 |
| METHOD FOR REPROCESSING OF OXIDIZED NICKEL-COBALT ORE | 2003 |
|
RU2245934C1 |
| METHOD OF HEAP LEACHING OF OXIDISED SILICATE NICKEL ORE | 2014 |
|
RU2557863C1 |
| METHOD FOR PROCESSING OXIDIZED NICKEL-COBALT ORE | 2020 |
|
RU2756326C2 |
| PROCEDURE FOR PROCESSING OXIDISED NICKEL-, COBALT-, IRON-, AND MAGNESIUM-CONTAINING ORE | 2009 |
|
RU2393250C1 |
| PROCESSING METHOD OF OXIDISED NICKEL-COBALT ORE | 2018 |
|
RU2694188C1 |
| METHOD OF PROCESSING OF URANIUM ORE | 2008 |
|
RU2385963C1 |
| METHOD OF PROCESSING OF RESIDUES OF NICKEL CARBONYL PRODUCTION SYNTHESIS | 2000 |
|
RU2159294C1 |
| METHOD FOR PROCESSING GRINDING WASTES FROM PRODUCTION OF PERMANENT MAGNETS | 2014 |
|
RU2574543C1 |
