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有色金属工程:2024,(5)
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80kVA交流电炉熔分铜渣选尾料金属化球团提取铁合金实验研究
马鹏1, 宗红星1, 吴红星1, 赵德刚2,2, 赵怀宇2,2, 张天权2,2, 金玉芬1
(1.镍钴共伴生资源开发与综合利用全国重点实验室;2.金川集团铜业公司)
Experimental Study on Extracting Ferroalloy From Metallized Pellets of Copper Slag Beneficiation Tailings Using 80kVA AC Electric Furnace
Ma Peng1, Zong Hongxing1, Wu Hongxing1, Zhao Degang2, Zhao Huaiyu2, Zhang Tianquan2, Jin Yufen1
(1.National Key Laboratory of Ni Co Associated Minerals Resources Development and Comprehensive Utilization;2.Copper company of JinChuan group)
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投稿时间:2024-01-10    修订日期:2024-02-03
中文摘要: 铜渣选尾料是铜冶炼炉渣经过选矿工艺处理后产出的尾料,其中赋存丰富的Fe、Ni、Cu、Cr等有价金属。本文以回转窑还原焙烧后得到的铜渣选尾料金属化球团为研究对象,采用80kVA交流电炉进行熔分实验,研究了额定工况下还原剂、助熔剂、沉降时间等不同工艺条件对Fe、Ni、Cu等金属回收率的影响,以及金属化球团熔分过程主要元素的迁移规律。结果表明,经回转窑还原得到的铜渣选尾料金属化球团在1530℃、熔剂率18%、沉降时间30min工艺条件下进行电炉熔分可有效回收铁、铜等有价金属,获得高品位铁合金产品,Fe回收率达95%以上,镍、铜回收率分别达到38%和71%。元素走向分析表明S、Pb、As等杂质元素会不同程度进入合金。
中文关键词: 铜渣选尾料  金属化球团  熔分  铁合金
Abstract:Copper slag beneficiation tailings are the tailings produced after copper smelting slag is treated by beneficiation process, which is rich in Fe, Ni, Cu, Cr and other valuable metals. In this paper, the metallization pellet of copper slag beneficiation tailings obtained after reduction and roasting in rotary kiln is taken as the research object, and 80kVA AC furnace is used to carry out the melting experiment, and the effects of different process conditions such as reductant, co-solvent and settling time on the recovery rate of Fe, Ni, Cu and other metals under the rated conditions are investigated, as well as the migration law of the main elements in the melting process of the metallization pellet. The results shown that the metallization pellet of copper slag beneficiation tailings obtained by rotary kiln reduction can effectively recover the valuable metals such as Fe and Cu, and obtain high-grade ferroalloy products by melting in an electric furnace under the process conditions of 1530℃, 18% of melting agent rate, and 30min of settling time, and the recovery of Fe is more than 95%, and the recovery of Ni and Cu reaches 38% and 71%, respectively. Elemental direction analysis shown that S, Pb, As and other impurity elements will enter the alloy to varying degrees.
文章编号:YSJSGC20240027     中图分类号:TF6    文献标志码:
基金项目:甘肃省联合科研基金
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马鹏,宗红星,吴红星,赵德刚,赵怀宇,张天权,金玉芬.80kVA交流电炉熔分铜渣选尾料金属化球团提取铁合金实验研究[J].有色金属工程,2024,(5):.

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有色金属工程:2024,(5)
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