镍转炉后期渣还原熔炼富集有价金属  

The Enrichment of Valuable Metals by Slag Reduction Smelting in the Later Period of Nickel Converter

作　　者：郜伟 揭晓武 张永禄 单正忠 阮书锋 Gao Wei;Jie Xiaowu;Zhang Yonglu;Shan Zhengzhong;Ruan Shufeng(Metallurgical Research and Design Institute,BGRIMM Technology Group,Beijing 101600,China;Xinjiang Zhongxin Mining Co.,Ltd.,Hami 839009,China)

机构地区：[1]矿冶科技集团有限公司冶金研究设计所,北京100160 [2]新疆众鑫矿业有限责任公司,新疆哈密839009

出　　处：《中国资源综合利用》2020年第9期1-4,17,共5页China Resources Comprehensive Utilization

基　　金：国家自然科学基金云南省联合基金项目(项目编号:U1302274)的阶段性研究成果之一。

摘　　要：镍转炉渣采用还原熔炼富集钴、镍、铜等有价金属,为保障工艺顺利进行,添加少量高冰镍降低合金熔点,本文研究了焦炭配入量、熔炼温度、熔炼时间等对钴、镍、铜富集效果的影响。结果表明,添加10%的高冰镍、6%的焦炭,在1400℃下还原熔炼45 min,合金中Ni、Co、Cu富集率分别达到96.63%、85.51%、85.43%。合金对有价金属具有显著的捕集效果,且合金中的铁可控制在20%以下,利于后续冰镍合金的湿法分离。The nickel converter slag is enriched with valuable metals such as cobalt,nickel and copper by reduction smelting,in order to ensure the smooth progress of the process,by adding a small amount of high nickel matte to reduce the melting point of the alloy,this paper studies the effects of coke content,melting temperature,and melting time on the enrichment effect of cobalt,nickel and copper.The results show that when adding 10%high matte nickel and 6%coke and reducing and smelting at 1400℃for 45 min,the enrichment rates of Ni,Co,and Cu in the alloy reach 96.63%,85.51%,and 85.43%,respectively.The alloy has a significant trapping effect on valuable metals,and the iron in the alloy can be controlled below 20%,which is beneficial to the subsequent wet separation of the matte alloy.

关 键 词：转炉渣 还原熔炼 冰镍合金 钴 

分 类 号：X756[环境科学与工程—环境工程]