The invention discloses a technology for recycling
sulfur and valuable
metal from
copper oxidative pressure leaching residues and belongs to the technical field of non-
ferrous metal recycling. According to the technology for recycling the
sulfur and the valuable
metal from the
copper oxidative pressure leaching residues, through carrier flotation, selective mixed flotation of
sulfur, iron, copperand metal in the
copper oxidative pressure leaching residues is achieved, the problem that
precious metal in the copper oxidative pressure leaching residues cannot be recycled is effectively solved, and the problem of influence of the iron element in the copper oxidative pressure leaching residues on the flotation
recovery rate is also solved; addition of flocculant is mainly used for increasing the particle size of sulfur and reducing the ore pulp
viscosity caused by iron
colloid in the copper oxidative pressure leaching residues, and it is achieved that the sulfur in the leaching residues isused as the flotation carrier of the copper, the iron, the gold and the like. Segmented pressure
filtration achieves segmented backwater utilization, it is avoided that agents intervene in the copperoxidative pressure leaching process and the residue
processing full procedure, and the
utilization rate of recycling treatment and the stability of the procedure are improved. After flotation recycling of copper concentrate, cyaniding gold extracting is conducted, the interference of the copper ions is lowered, effective enrichment of gold is achieved, and effective
economic benefits are createdfor cyaniding gold extracting.