本文以冶炼铜的尾渣为原料，对其采用直接还原－湿式磁选工艺进行实验研究，主要探究还原温度、还原时间对铜渣还原的影响。结果表明：在还原温度为1200℃、还原时间为20 min、磁选磁场强度为75．62 kA／m ，获得精矿的铜、铁品位分别是1．73％、4．57％，铜、铁的回收率依次为90．56％、70．23％，该产品可作为含铜铁素体不锈钢的冶炼原料。%In this paper , the slag of smelting copper is used as raw material , experimental study on the di‐rect reduction and wet magnetic separation process . The temperature and reduction time to effect reduction of copper slag are mainly explored . The results show that :the reduction temperature of 1 200 degrees , the reduction time of 20 min , magnetic field strength of 75 .62 kA/m . Under this condition , the copper and iron grade of concentrate are 1 .73% and 4 .57% respectively . The recovery rate of copper and iron are 90.56% and 70 .23% respectively . T he product can be used as raw material for smelting copper containing ferrite stainless steel .
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