FIELD: metallurgy.
SUBSTANCE: invention relates to non-ferrous metallurgy and can be used in the extraction of nickel and cobalt from oxidized nickel-cobalt ores. The ore is mixed with sulfuric acid, the mixture is heat treated, nickel and cobalt are leached from the heat treatment product with water, and nickel and cobalt are separated from the productive solutions. Heat treatment of a mixture of ore and sulfuric acid is carried out in a microwave oven at a temperature of 200-250°C for 10-15 minutes in an atmosphere of water vapor.
EFFECT: method reduces the duration of sulfatization 10-15 times, and energy consumption 5-10 times.
1 cl, 1 dwg
| Title | Year | Author | Number |
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RU2741429C1 |
