高磷鲕状赤铁矿分级磁选-反浮选试验研究  

Beneficiation of High-phosphorus Oolitic Hematite with Classification-Magnetic Separation-Reverse Flotation Flowsheet

作　　者：陈文辉[1,2] 陈广[1,2] 何晓太[1,2] 李先海[1,2] 张覃[1,2] 

机构地区：[1]贵州大学矿业学院,贵州贵阳550025 [2]贵州省非金属矿产资源综合利用重点实验室,贵州贵阳550025

出　　处：《矿冶工程》2013年第5期46-49,共4页Mining and Metallurgical Engineering

基　　金：贵州省优秀科技教育人才省长专项基金项目(Z073218);贵州省重大专项(黔科合重大专项字(2010)6003号;(2011)6023)

摘　　要：根据某高磷鲕状赤铁矿磨矿分级产品中铁在各粒级中的分布差异,采用粗细分级-磁选工艺,分别进行弱磁-强磁选,获得了TFe品位为46.8%、TFe回收率为82%的磁选粗精矿。对粗精矿再磨进行一粗两精反浮选,获得精矿TFe品位为54.5%,TFe回收率为68.3%。Due to the difference existed in TFe grade among different size fractions of ground high-phosphorus oolitic hematite ore, the technique of classification-magnetic separation was adopted for the beneficiation of classified products, separately by low intensity magnetic separation and high intensity magnetic separation, yielding a rough concentrate with TFe grade of 46.8% at a recovery of 82% from magnetic separation. The rough concentrate, after being reground, was subjected to a reverse flotation process with one stage of roughing and two stages of cleaning, producing an iron concentrate with TFe grade of 54.5% at a recovery of 68.3%.

关 键 词：高磷鲕状赤铁矿 分级 强磁选 阶段磨矿 反浮选 

分 类 号：TD92[矿业工程—选矿]