金川镍弃渣铁资源回收综合利用  

Comprehensive utilization of iron recovery from Jinchuan nickel residue

作　　者：倪文[1] 贾岩[1] 郑斐[2] 王中杰[1] 郑美娟[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]中国纺织工业设计院,北京100037

出　　处：《北京科技大学学报》2010年第8期975-980,共6页Journal of University of Science and Technology Beijing

摘　　要：针对金川镍弃渣的特点,采用深度还原-磁选工艺,对其进行铁资源回收的综合利用实验研究,获得了铁品位为89.84%,铁回收率达93.21%的铁精矿.探讨了还原温度、还原时间、二元碱度、磨矿细度和磁场强度等不同实验条件对产品指标和分离效果的影响.通过X射线衍射分析、光学显微分析、SEM分析、化学分析等手段确定了镍弃渣与铁精矿的物相组成和特点.Based on the characteristics of Jinchuan nickel residue, a comprehensive utilization experimental study on iron recovery was done by the deep reduction-magnetic separation method to get iron concentrate whose grade of iron is 89.84% and recovery rate of iron is 93.21%. The effects of some experimental conditions such as reduction temperature, reduction time, binary basicity, grinding fineness and magnetic field intensity on the separation efficiency and product indexes were researched. The phase compositions and characteristics of nickel residue and iron concentrate were determined by X-ray diffraction, optical microscopy, SEM and chemical analysis.

关 键 词：炼铁 弃渣 还原 磁选 

分 类 号：TD982[矿业工程—选矿] TF556[冶金工程—钢铁冶金]