METHOD OF DEPOSITING SULFIDES OF HEAVY NON-FERROUS METALS

摘要

1. DEPOSITION METHOD sulfides TYAZHELK nonferrous metals in the acidic sulfur containing pulps limestone and metallic iron with posleduyurschm flotation separation of sulfur and sulphides in the flotation concentrate, characterized in that, with the aim of reducing the metallic iron in the deposition rate, increase the sulfur recovery during flotation concentrate and flotation concentrate quality, during the precipitation, the pulp is treated with an oxygen-containing gas with an oxygen concentration of 20-50 vol.%, starting treatment when the pulp has a pH of 2.5-3.3 and ends at a pH of 3.8-4.3. (L 2. The method according to claim 1, which is also distinguished by the fact that abgas of autoclaved oxidative synthesis of sulfide materials is used as oxygen-containing gas.