含铜难处理铁矿选冶联合工艺研究

Research on Dressing-Metallurgy Combination Processing for an Overall Iron Ore Containing Copper

国外某铁矿铁品位为62.14%,铜含量为0.58%,其中的铜矿物氧化率和结合率较高,属于难处理含铜铁矿石。鉴于对矿石性质的研究,采用磁选—浸出的选冶联合工艺,最终获得两种产品:一种是优质的弱磁选铁精矿,其中铁品位为68.90%,回收率为46.83%,铜含量为0.16%;一种是浸出后的磁选尾矿,其中铁品位为57.89%,回收率为53.17%,铜含量为0.28%,该工艺为含铜铁矿资源的有效利用提供了依据。

It is a refractory iron ore containing copper that the copper ore is mainly oxide ore and high combined ratio. The content of Cu and Fe reaches 0.58% and 62.14% respectively. Based on its＇ process mineralogy research, a process consisting of magnetic separation - leaching - ore was adopted for treating this ore. Two products were obtained： one is the high quality iron ore con- centrate, in which the content of Fe is 68.90% %, recovery of Fe is 46.83% and the content of Cu is 0. 16% ; the other is tailing leached by acid, in which the content of Fe is 57.89%, recovery of Fe is 53.17% and the content of Cu is 0. 28%. This technique provides references for resource comprehensive utilization of refractory iron ore containing copper.