安徽某低铜高硫磁铁矿石选矿试验

安徽某低铜高硫磁铁矿石属嵌布关系复杂的多金属矿石。为了开发利用该矿石,采用优先选铜—活化浮硫—弱磁选选铁—铁精矿反浮选脱硫原则流程进行了选矿试验。结果表明,铁品位为46.62%、铜品位为0.32%、硫品位为20.56%的矿石采用1粗2精1扫浮铜、1粗1精2扫浮硫、1次弱磁选铁、弱磁选铁精矿1粗1精反浮选脱硫流程处理,最终获得了铜品位为17.09%、回收率为78.64%的铜精矿,铁品位为67.35%、回收率为41.16%、含硫0.28%的铁精矿,以及硫品位为43.69%、回收率为88.79%的硫精矿。该试验结论可作为选矿厂设计的依据。

Mineral Processing Test of a Low-copper and High-sulfur Magnetite Ore in Anhui

A low-copper and high-sulfur magnetite ore in Anhui is polymetallic ore with complex embedded relationship.In order to exploit and utilize the ore，the beneficiation process based on the principle of preferential flotation of copper，activating flotation of sulfur，low intensity magnetic separation of iron，desulfurizing by reverse flotation of iron concentrates was tested.The raw ore consisting of 46.62% iron，0.32% copper，20.56% sulfur was treated by four-stage process of copper flotation of one roughing-two cleaning-one scavenging，sulfur flotation of one roughing-one cleaning-two scavenging，iron concentration of one low intensity magnetic separation，and desulfurizing of iron concentrates by reverse flotation of one roughing-one cleaning.Finally，copper concentrate with Cu grade of 17.09% and recovery of 78.64%，iron concentrate with Fe 67.35%，S 0.28% and iron recovery of 41.16%，sulfur concentrate with S 43.69% and recovery of 88.79% were obtained separately.The test conclusion can be used as the basis for designing of the dressing plant.