陕西某难选原生钛铁矿选矿工艺研究
Multipurpose Utilization of Mineral Resources（2014）
Abstract
陕西某地原生钛铁矿为钒钛磁铁矿选铁尾矿,原矿品位较低,矿物组成复杂,钛铁矿与榍石、钛赤铁矿等脉石矿物可浮性相近,且钛铁矿嵌布粒度细,与榍石、钛磁铁矿等脉石连生密切,分离难度大.针对该矿石性质,进行了4种方案的工艺对比试验研究,结果表明,一段高梯度强磁选-磨矿-弱磁选-二段高梯度强磁选-脱硫浮选-钛浮选方案,工艺简单,精矿指标最好,在原矿TiO:品位9.78％的情况下,获得了TiO2品位46.82％,回收率40.84％的钛铁矿精矿,且浮选前再磨后,精矿指标可进一步提高到TiO2品位47.23％,回收率45.36％.
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