Abstract
Desulfurization and ceramic tile preparation of gold cyanide tailing have been carried out. A novel oxidant DDTQ has been successfully applied to collaborative decyanation and desulfurization. The removal efficiency of cyanide ions can exceed 99%, and the reduction rate of pyrite and chalcopyrite can be achieved above 90% at the same time with wet oxidation process. Ceramic tiles have been successfully prepared by adding sulfur fixing agent composites during the firing process. The fixing mechanism of residual sulfur after oxidative desulfurization has also been proposed.
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