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

作　　者：李晓波[1,2] 许浩 李国栋 徐宝金[1,4] 徐莎莎[4] LI Xiaobo;XU Hao;LI Guodong;XU Baojin;XU Shasha(School of Resource and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;Jiangxi Key Laboratory of Mining Engineering,Ganzhou 341000,Jiangxi,China;Northwest Institute of Mining and Metallurgy,Baiyin 730900,Gansu,China;Ma’anshanIron and Steel Group Luohua Mining Limited Liability Company,Hefei 231562,Anhui,China)

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]江西省矿业工程重点实验室,江西赣州341000 [3]西北矿冶研究院,甘肃白银730900 [4]马鞍山钢铁集团罗河矿业有限责任公司,安徽合肥231562

出　　处：《矿产综合利用》2024年第4期123-127,133,共6页Multipurpose Utilization of Mineral Resources

基　　金：江西省教育厅科学技术研究项目(GJJ190440);校创新创业训练计划项目(DC2018-004)。

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1 200℃,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。This is an article in the field of metallurgical engineering.Torecover copper and iron from acopper smelting slag flotation tailingwith iron grade of 37.42%and copper grade of 1.86%,according to thecharacteristics of its ore properties,the bituminous coal was used as a reductant,the process of directreduction roasting-magnetic separation was applied.The experimental results show that copper smeltingslag,bitumite and quicklime(as a co-reducing agent)are mixed in the mass ratio of 100∶25∶20,and at theconditions of roasting temperature of 1200℃,time of 80 min,the roasted ores gringding fineness of-0.045mm 80%,and magnetic strength of 0.139 T,the copper-bearing iron ore concentrate can be obtained with aniron grade of 90.98%,iron recovery of 90.13%,copper grade of 5.82%and copper recovery of 87.38%,thusrealizing the comprehensive recovery of copper and iron from copper smelting slags.

关 键 词：冶金工程 铜冶炼渣 还原焙烧 磁选 综合回收 

分 类 号：TD982[矿业工程—选矿]