FIELD: reprocessing of oxidized ore by sulfating.
SUBSTANCE: claimed method includes raw treatment with sulfuric acid, transfer of soluble sulfates into solution and roasted product leaching. Batch is baked in gas medium obtained by oxidizing of elementary sulfur of sulfides with air oxygen. Then gases are recycled into sulfuric acid production. Sulfur oxides released during batch baking are utilized together with sulfur oxidation products charged in oven.
EFFECT: prevention of sulfur oxides losses; cobalt and nickel recovery with high yield; reduced fuel consumption.
1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR REPROCESSING OF OXIDIZED NICKEL-COBALT ORE | 2003 |
|
RU2245933C1 |
| METHOD OF REPROCESSING OF THE OXYGENATED NICKEL-COBALT ORES | 2004 |
|
RU2287597C2 |
| METHOD FOR NICKEL AND OTHER METAL RECOVERY FROM OXIDIZED ORE | 2003 |
|
RU2245932C1 |
| METHOD OF HEAP LEACHING OF OXIDISED SILICATE NICKEL ORE | 2014 |
|
RU2557863C1 |
| METHOD FOR PROCESSING OXIDIZED NICKEL-COBALT ORE | 2020 |
|
RU2756326C2 |
| PROCESSING METHOD OF OXIDISED NICKEL-COBALT ORE | 2018 |
|
RU2694188C1 |
| PROCEDURE FOR PROCESSING OXIDISED NICKEL-, COBALT-, IRON-, AND MAGNESIUM-CONTAINING ORE | 2009 |
|
RU2393250C1 |
| METHOD FOR PROCESSING OF OXIDISED NICKEL ORES | 2012 |
|
RU2502811C1 |
| PROCESSING METHOD FOR OXIDIZED NICKEL ORE | 2022 |
|
RU2803695C1 |
| METHOD OF PROCESSING MATERIALS CONTAINING PLATINUM METALS AND CARBON REDUCING AGENT | 2000 |
|
RU2164538C1 |
