铁尾矿二次资源的综合利用  

COMPREHENSIVE UTILIZATION OF IRON ORE TAILINGS SECONDARY RESOURCES

作　　者：曾茂青[1] 王世涛[1] 杨晓峰[1] 乐智广[1] 孙广周[1] 

机构地区：[1]国土资源部昆明矿产资源监督检测中心,昆明650218

出　　处：《矿冶》2011年第4期56-59,共4页Mining And Metallurgy

摘　　要：云南某铁选矿厂的尾矿含铁28.68%、二氧化硅40.95%,开展了摇床重选、高梯度强磁选、正浮选、阴离子反浮选和阳离子反浮选等五种工艺的探索对比,阳离子反浮选是较佳的提铁降硅工艺流程。该铁尾矿经阳离子反浮选工艺选别后,获得精矿含铁51.13%、二氧化硅11.54%、回收率64.76%的技术经济指标,为该矿山企业综合回收利用二次资源提供了决策的依据。A kind of iron concentrator tailings in Yunnan province with iron content of 28.68% and silica content of 0.95% is processed by five different anti-flotation processes such as ：shaking table gravity separation,high-gradient strong magnetic separation,flotation,anionic reverse flotation,as well as cationic reverse flotation.The results are compared and show that cationic reverse flotation is a better processing method for recovery iron and reduce silicon.By cationic reverse flotation process,concentrate with grade of 51.13% and silica content of 11.54% is obtained with recovery rate of 64.76%,which provides a decision-making basis of comprehensive secondary resources recycling for the mining company.

关 键 词：铁尾矿 褐铁矿 阳离子反浮选 综合回收 

分 类 号：TD951[矿业工程—选矿]