内蒙古某复杂钨矿石选矿工艺改进及尾矿综合利用探索

    Exploration of the Beneficiation Process of a Complex Tungsten Ore and the Comprehensive Utilization of Tailings in Inner Mongolia

    • 摘要: 【目的】内蒙古某钨矿石矿物成分复杂,金属矿物主要为白钨矿和黑钨矿,非金属矿物主要为萤石,矿石中白钨矿略高于黑钨矿,脉石矿物对钨矿物的回收干扰巨大。为了实现白钨矿及黑钨矿的高效回收及选钨尾矿中伴生有价组分萤石的综合利用,【方法】对该矿石进行了详细的实验研究,最终确定采用“脱硫-钨矿混合浮选-萤石浮选”的工艺流程。【结果】获得WO3品位63.52%、WO3回收率67.61%的混合钨精矿和CaF2品位93.22%、CaF2回收率63.96%的萤石精矿,指标良好,【结论】实验有效回收了该矿石中白钨矿、黑钨矿和萤石资源。

       

      Abstract: Objective The mineral composition of the tungsten ore in Inner Mongolia is complex. Its metallic minerals are mainly scheelite and wolframite, and its non-metallic mineral is mainly fluorite. In the ore, the content of scheelite is slightly higher than that of wolframite, and gangue minerals have a huge interference with the recovery of tungsten minerals. In order to achieve the efficient recovery of scheelite & wolframite and comprehensively utilize the associated valuable component fluorite in the tailings of tungsten selection, Method this thesis has conducted a detailed experimental study on this ore. Finally, the technological process of "desulfurization - tungsten ore mixed flotation - fluorite flotation" was determined. Result It can obtain a mixed tungsten concentrate with WO3 grade of 63.52% and WO3 recovery rate of 67.61%, and a fluorite concentrate with CaF2 grade of 93.22% and CaF2 recovery rate of 63.96%. Conclusion The scheelite, wolframite and fluorite resources in the mine were recovered effectively.

       

    /

    返回文章
    返回