磁、重(浮)联合流程回收选厂尾矿中铁的试验研究  

Iron Reclaiming from Concentrator Tailings by Combined Processes of Magnetic Separation and Gravity Concentration /Flotation

作　　者：卓晓军[1] 唐雪峰[1] 王祥[1] 

机构地区：[1]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿冶工程》2014年第5期34-38,共5页Mining and Metallurgical Engineering

基　　金："十二五"国家科技支撑计划课题(2012BAB23G01)

摘　　要：针对某铁矿选厂尾矿中镜铁矿粗细嵌布不均的特点,采用重选-磁选-浮选和重选-磁选-重选工艺流程分别进行选别,分别获得了铁精矿产率22.26%、铁品位65.86%、铁回收率71.76%与铁精矿产率20.44%、铁品位66.13%、铁回收率66.16%的良好试验指标。研究成果不仅为该尾矿资源的开发利用提供了技术支撑,而且对同类二次资源的高效开发具有重要的指导和借鉴意义。According to the characteristics of uneven size distribution of specularite particles in the tailings from some iron ore concentrator, experimental studies were performed by two flowsheets respectively. Results showed that a combined process of gravity separation-magnetic separation-flotation produced an iron concentrate approaching 65.86% Fe grade at 71.76% recovery with a yield of 22.26%, and another process of gravity separation-magnetic separationgravity separation led to an iron concentrate approaching 66.13% Fe grade at 66.16% recovery with a yield of 20.44%. This study can provide a technical reference and guidance not only for the exploitation of such kind of tailings, but also for the efficient utilization of secondary resources of this kind.

关 键 词：二次资源 镜铁矿 重选 角闪石 正浮选 

分 类 号：TD951[矿业工程—选矿]