李晓波, 许浩, 李国栋, 等. 某冶炼铜渣综合回收铜铁的实验研究[J]. 矿产综合利用, 2024, 45(4): 123-127+133. DOI: 10.3969/j.issn.1000-6532.2024.04.018
    引用本文: 李晓波, 许浩, 李国栋, 等. 某冶炼铜渣综合回收铜铁的实验研究[J]. 矿产综合利用, 2024, 45(4): 123-127+133. DOI: 10.3969/j.issn.1000-6532.2024.04.018
    LI Xiaobo, XU Hao, LI Guodong, et al. Experimental research on recovery copper and iron from copper smelting slags by direct reduction roasting-magnetic separation[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(4): 123-127+133. DOI: 10.3969/j.issn.1000-6532.2024.04.018
    Citation: LI Xiaobo, XU Hao, LI Guodong, et al. Experimental research on recovery copper and iron from copper smelting slags by direct reduction roasting-magnetic separation[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(4): 123-127+133. DOI: 10.3969/j.issn.1000-6532.2024.04.018

    某冶炼铜渣综合回收铜铁的实验研究

    Experimental Research on Recovery Copper and Iron from Copper Smelting Slags by Direct Reduction Roasting-magnetic Separation

    • 摘要: 这是一篇冶金工程领域的论文。某铜冶炼渣浮选尾渣中铁品位为37.42%,铜品位为1.86%,根据其矿石性质特点,采用烟煤作为还原剂,应用直接还原焙烧-磁选工艺回收铜尾渣中铜铁,实验结果表明:将铜冶炼渣、烟煤和生石灰(作为助还原剂)按 100∶25∶20的质量比混合,在焙烧温度定1200 ℃,时间为80 min,磨矿细度为-0.045 mm 80%,磁场强度为0.139 T条件下可获得铁品位为90.98%,铁回收率为90.13%,铜品位为5.82%、铜回收率为 87.38%的含铜铁精矿,实现了冶炼渣铜中铜铁的综合回收。

       

      Abstract: This is an article in the field of metallurgical engineering. Torecover copper and iron from a copper smelting slag flotation tailingwith iron grade of 37.42% and copper grade of 1.86%, according to the characteristics of its ore properties, the bituminous coal was used as a reductant, the process of direct reduction roasting - magnetic separation was applied.The experimental results show that copper smelting slag, bitumite and quicklime (as a co-reducing agent) are mixed in the mass ratio of 100∶25∶20, and at the conditions of roasting temperature of 1 200 ℃, time of 80 min, the roasted ores gringding fineness of -0.045 mm 80%, and magnetic strength of 0.139 T, the copper-bearing iron ore concentrate can be obtained with an iron grade of 90.98%, iron recovery of 90.13%, copper grade of 5.82% and copper recovery of 87.38%, thus realizing the comprehensive recovery of copper and iron from copper smelting slags.

       

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