磁选—反浮选回收某铜冶炼渣选铜尾矿中的铁  

Iron Recovery from Tailings of the Smelting Slag after Copper Flotation with Magnetic Separation-reverse Flotation

作　　者：李家林[1] 严小虎[1] LI Jialin;YAN Xiaohu(Changsha Research Institute of Mining and Metallurgy Co.,Ltd,Changsha 410012,China)

机构地区：[1]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿产保护与利用》2022年第3期142-145,共4页Conservation and Utilization of Mineral Resources

摘　　要：为了回收某铜冶炼渣中的铁,在工艺矿物学研究基础上,进行了磨矿—弱磁选—反浮选技术研究。研究结果表明,样品中Fe含量高达47.14%,主要赋存于磁铁矿和含铁硅酸盐中,分布率分别为53.01%、44.38%。在磨矿细度-0.030 mm占95.31%时,采用弱磁选—反浮选工艺,可获得产率35.51%、TFe品位62.71%、铁回收率47.03%的铁精矿;尾矿可作为水泥铁质调整料销售。最终实现铜渣中铁金属的综合回收及无尾排放。In order to recover iron from tailings of the smelting slag after copper flotation,the separation process of grinding-low magnetic separation-reverse flotation was carried out based on the process mineralogy research results.The results showed that the iron content in the sample was as high as 47.14%.The distribution rate of iron in the magnetite form and in the iron-containing silicate form were 53.01%and 44.38%,respectively.When the grinding fineness was 95.31%(-0.030 mm)and the the separation process of grinding-low magnetic separation-reverse flotation was carried out,the iron concentrate was obtained with yield of 35.51%,TFe grade of 62.71%and iron recovery of 47.03%.Tailings can be sold as iron conditioner for cement industry.Finally,the comprehensive recovery and tailless discharge of iron in the smelting slag would be realized.

关 键 词：铜冶炼渣 选矿 磁选 反浮选 综合利用 

分 类 号：TD951.1[矿业工程—选矿] TD923