论文部分内容阅读
提出一种无二氧化硫排放的有色金属冶炼方法。将有色金属硫化矿或硫化矿精矿或它们的含硫物料与造锍剂、还原剂、添加剂磨碎混合 ,然后在 10 0 0～ 130 0℃的温度下进行还原造锍熔炼。该方法在无二氧化硫生成的情况下一步炼制有色金属粗金属或合金 ,产出锍、炉渣和烟尘 ,同时回收金、银等贵金属 ,具有流程简单、回收率高、成本低等优点。此方法适合于铅、锑、铋的单一硫化矿或精矿、铅 -锑、铅 -锌、及铜 -铅 -锌及铜 -锌复杂硫化矿或精矿以及这些金属的含硫富集物的无污染冶炼 ,更适合从含金黄铁矿烧渣中回收贵金属
A non-ferrous metal smelting method without sulfur dioxide emission is proposed. The non-ferrous metal sulfide ore or sulfide ore concentrate or their sulfur-containing material and the matting agent, reducing agent, additive grinding and mixing, and then at a temperature of 100 ~ 130 0 ℃ matte smelting reduction. The method can further refine the non-ferrous metal crude metal or alloy in the absence of sulfur dioxide to produce sulfonium, slag and soot, and simultaneously recover precious metals such as gold, silver and the like, and has the advantages of simple process, high recovery rate and low cost. This method is suitable for single sulfide ores or concentrates of lead, antimony, bismuth, lead-antimony, lead-zinc and copper-lead-zinc and copper-zinc complex sulphide ores or concentrates and sulfur-bearing enrichments of these metals Of the pollution-free smelting, more suitable for recovery of precious metal from pyrite containing gold