辽宁某铁硼矿磁选-浮选试验研究

辽宁某铁硼矿石中有用矿物有磁铁矿、硼镁石和硼镁铁矿,脉石矿物主要有镁橄榄石、蛇纹石、透闪石、金云母、磷灰石、黄铁矿、磁黄铁矿以及碳酸盐矿物等。矿石的物质组成复杂,共生关系密切,磁铁矿嵌布粒度细,属难选铁硼矿石。试验采用阶段磨矿阶段磁选铁矿物,磁选尾矿浮选回收硼矿物的工艺流程,在原矿品位TFe 24.68%、B2O34.77%的条件下,获得铁精矿品位61.34%,铁回收率89.63%,硼精矿品位B2O312.00%,硼总回收率51.41%的试验指标。

Exprtiment Study on iron boron by magnetic-flotation separation in Liaoning province

The main useful mineral are magnetite, camsellite and boric magnesium iron ore and main gangue mineral are magnesium olivine, ophiolite, tremolite, phlogopite, aptite, pyrite, pyrrhotite and some carbonate minerals in a ore in Liaoning. The composition of the ore is complex, the relationship is close between different minerals,the magnetite is fine disseminated, it is iron-boron ores of being difficult to processed. The index of grade of Fe being 61.34%, and recovery of Fe being 89.63%,grade of B2O3 being 12.00%, and recovery of B2O3 being 51.41% were got on by using the flowsheet of stage grinding, stage magnetic separation recovering Fe and using the flowsheet o flotation recovering B the gangue of Fe and suitable conditions.