| 摘要 |
The invention discloses a mineral containing gold and at least one of the following metals: silver, cooper, nickel, zinc or iron, said mineral being calcinated at temperatures in the range of between 500 and 900 degree C, adding an oxygen-containing gas, thereby forming a mixture of solid materials containing metallic oxides, and an exhausting gas containing SO2. The exhausting gas containing SO2 is contacted with and aqueous solution, thereby producing a solution containing sulfite. The mixture of solid materials resulting from calcination is cooled down to temperatures between 50 and 300 degree C, and mixed by stirring with the sulfite-containing solution. These metallic oxides are dissolved and a sulfate-containing solution is formed. In a first separation zone, said sulfate-containing solution is separated from the solution solid materials, and said solid materials are transferred to a gold lixiviating device, or the sulfate-containing solution continues to be treated for the separation of non-ferrous metals therefrom.
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