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对难处理的复杂硫化矿中,加入硫酸,在有还原剂存在的情况下,对 PbS 进行选择性的硫酸化,这种放选择性硫酸化了的复杂硫化矿按通常的浮选法处理,精矿作为沉淀回收。上述所说的还原剂以铁粉、锌粉、铝粉为好。在使用铁粉时,铁粉用量对原料(复杂硫化矿)应是20公斤/吨以上,最适宜的添
In complex refractory sulfide ores, sulfuric acid is added and selective sulphation of PbS is carried out in the presence of a reducing agent. This highly selective and sulphated complex sulphide ore is treated by the usual flotation process, Concentrate recovery as a precipitate. The above-mentioned reducing agent to iron powder, zinc powder, aluminum powder is better. When using iron powder, the amount of iron powder on the raw materials (complex sulfide ore) should be 20 kg / ton, the most suitable Tim