内蒙古银铅锌矿选矿试验研究

Flotation separation study on a silver-lead-zinc ore from Inner Mongolia

摘要: 对内蒙古含银铅锌矿石进行了浮选分离工艺研究。在查明矿石的主要矿物组成及嵌布特征的基础上，依据矿石特性采用铜铅混选-锌浮选的工艺流程进行选矿试验，从含银310.92 g/t、铅6.10%、锌4.95%的矿石中获得含铅76.63%、含银3 659.74 g/t、铅回收率为91.50%、银回收率为87.11%的铅精矿和含锌55.48%、含银282.84 g/t、锌回收率为89.15%、银回收率为7.34%的锌精矿。实现了矿石中银、铅、锌的综合回收。

Abstract: In this paper, the flotation separation of a silver-lead-zinc ore from Inner Mongolia was studied.Based on the investigation of the main mineral compositions and dissemination characteristics in the ore through process mineralogy, according to the aboved sample’s property, the process of bulk flotation of copper and lead minerals, and then flotation of zinc minerals was adopted.The results of the closed circuit obtained a lead concentrate grading 76.63% Pb at a recovery of 91.50% and grading 3 659.74 g/t Ag at a recovery of 87.11%, a zinc concentrate grading 55.48% Zn at a recovery of 89.15% and grading 282.84 g/t Ag at a recovery of 7.34% from the ore with Ag 310.92 g/t, Pb 6.10% and Zn 4.95%.It was achieved the comprehensive recovery of Ag, Pb and Zn from the ore.