某高硅低品位氧化铁矿石的选矿试验研究  

Experimental Study on Beneficiation Process of a High Silicon Low Grade Iron Ore

作　　者：秦丽娜[1,2] 秦彩霞[1,2] QIN Li-na QIN Cai-xia(Gansu Provincial Key Laboratory for Iron Ore Resource Utilization Technology Center of Jiuquan Iron and Steel （Group） Co.ration, Jiayuguan, Gansu, 735100)

机构地区：[1]甘肃省难选铁矿石资源利用重点实验室 [2]酒钢集团技术中心,甘肃嘉峪关735100

出　　处：《酒钢科技》2016年第4期1-5,共5页

摘　　要：某高硅低品位氧化铁矿石铁品位为25%左右。该铁矿石筛分成粉矿、块矿后进行预选抛尾。粉矿预选精矿磨矿后进行强磁选,精矿铁品位可达41.20%以上,SiO_2含量16.22%以下。块矿预选精矿经阶段磨矿阶段弱磁选-反浮选,精矿铁品位可达61.20%以上,SiO_2低至8.82%以下。The Fe grade of a high silicon low grade iron oxide ore is about 25%. Tailings were partially discarded after divided to powder ore and lump ore. After grinding and concentrate of powder ore, the grade of concentrate iron can reach 41.20% and the content of SiO2 is below 16.22%. The ore grade of concentrate is 61.20% or higher and the SiO2 is as low as 8.82% after stage grinding, weak concentrate and reverse flotation for the pre-selected concentrate lump ore.

关 键 词：高硅 低品位 氧化矿 选矿 

分 类 号：TD951.1[矿业工程—选矿]