碳直接还原富铌渣制取铌铁合金温度的影响  

Effect of Direct Reduction of Carbon-rich Slag on the Temperature of Strontium Iron Alloy

作　　者：冯运来 陈义胜[1] 闫永旺[1] 武锦 石强 Feng Yunlai;Chen Yisheng;Yan Yongwang;Wu Jin;Shi Qiang(College of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou,Inner Mongolia,China)

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《矿产综合利用》2021年第2期141-145,共5页Multipurpose Utilization of Mineral Resources

摘　　要：本文对使用纯石墨碳粉对低品位富铌渣直接还原进行了研究。通过在同组前辈对气基选择性还原含铌矿粉制取富集铌的较佳实验条件之上,将还原得到含铌矿粉通过渣金熔分得到金相和渣相,而后使用纯石墨碳粉对富铌渣进行直接还原,对比不同温度情况下生成铌铁合金中铌的收得率,通过实验数据综合分析得到还原实验条件:1550℃时碳直接还原富铌渣生成铌铁合金可达到较优状态,铌得收得率为73.94%。In this paper,the direct reduction of low-grade rich slag was studied using pure graphite carbon powder.By using the best test conditions for the selective reduction of antimony-containing ore fines in the same group,the reduction of the antimony-containing ore powder is obtained by slag gold melting to obtain the metallographic phase and the slag phase.The graphite carbon powder directly reduced the cerium-rich slag,and compared the yield of bismuth in the bismuth iron alloy under different temperature conditions.The test conditions were comprehensively analyzed to obtain the reduction conditions:the direct reduction of slag-rich slag to form samarium iron alloy at 1550°C.In the optimal state,the yield was 73.94%.

关 键 词：铌铁矿粉 碳直接还原 铌铁合金 铌收得率 

分 类 号：TD989[矿业工程—选矿]