从铜冶炼渣中回收铁的试验研究  

Experimental study of Recovery of Iron from Copper Smelting Slag

作　　者：杨椿 余洪[2] 

机构地区：[1]云维集团大为焦化制供气有限责任公司,云南曲靖655338 [2]昆明理工大学国土与资源工程学院,云南昆明650093

出　　处：《矿产综合利用》2014年第5期55-58,共4页Multipurpose Utilization of Mineral Resources

摘　　要：通过探索试验可知,采用磨矿-焙烧-湿式弱磁选-反浮选联合流程,可以很好的回收某铜渣中的铁。铜渣先经磨矿,细度为-0.074mm 80%;在温度为1000℃的有氧条件下焙烧60min后,经一段湿式磁选;磁选精矿再经二次磨矿,细度为-0.074mm 90%;然后经反浮选试验,捕收剂十二胺用量为800g/t,抑制剂淀粉用量为1000g/t时,最终得到产率为61.72%,铁品位为63.16%,回收率为60.39%的铁精矿,取得了良好的指标,为铜渣选铁的工业应用提供了一定参考。The studies that recover iron from copper smelting slag were rarely. Through the exploring experiment, itis concluded that the process of grinding-roasting-wet magnetic separation-reverse flotation was very good to recover iron from the copper slag. The copper slag was ground to 80% of -0.074ram firstly, and then was roasted under the aerobic conditions at 1000℃, and then was separated by wet magnetic separator. The magnetic concentrate was ground to -0. 074mm 90%, and then was separated by froth flotation at the conditions of collector twelve amine 800 g/t and inhibitor starch 1000 g/t. Finally the concentrate with a yield of 61.72% ,a TFe grade of 63.16 and a re- covery of 60.39% was obtained, which was considered as a good indicator. It provides a certain reference for the iron recovery from copper slag in industrial application.

关 键 词：铜渣 铁回收 焙烧 反浮选 

分 类 号：TD951[矿业工程—选矿]