A lead-zinc ore characterized by finely-disseminated Pb ,S and high-sulfur was recovered by flotation process .The results show that the qualified concentrates were attained by differential flotation process at grinding fineness of -0 .074 mm (60% ) ,the flotation process recovered galena by one-stage rougher ,three-stage cleaning and three-stage scavenger ,and sphalerite by one-stage rougher ,three-stage cleaning and three-stage scavenger ,and pyrite by one-stage rougher ,one-stage cleaning and two-stage scavenger .The lead concentrate of 43 .29% Pb with a recovery of 78 .33% ,the zinc concentrate of 44 .90%Zn with a recovery of 91 .21% ,the sulfur concentrate of 45 .85% S with a recovery of 58 .99% were obtained .%针对贵州某铅和硫嵌布粒度细、硫含量较高的铅锌矿开展浮选工艺研究.结果表明,磨矿细度-0.074 m m占60%,采用优先浮选流程,铅浮选流程为"一粗三精三扫"、锌浮选流程为"一粗三精三扫"、硫浮选流程为"一粗一精二扫",能获得合格精矿,铅精矿中铅品位43.29%、回收率78.33%,锌精矿中锌含量为44.90%、回收率91.21%,硫精矿硫含量为45.85%、回收率为58.99%.
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