安徽某石英石提质除铁选矿试验  

Beneficiation Experiment of Quality Improving and Iron Removal on a Quartz Ore from Anhui

作　　者：王宽[1,2] 彭小敏[1,2] 靳恒洋[1,2] 

机构地区：[1]华唯金属矿产资源高效循环利用国家工程研究中心有限公司 [2]中钢集团马鞍山矿山研究院有限公司

出　　处：《现代矿业》2015年第10期59-62,共4页Modern Mining

摘　　要：安徽某石英石Si O2含量为97.5%、含铁0.51%,铁主要以弱磁性矿物的形式存在,仅通过磁选除铁难以使铁含量降低到0.07%以下。为最大限度除铁、提高石英纯度,在分析矿石性质的基础上,选择弱磁选—脱泥—反浮选—分级—强磁选工艺流程对该石英石进行选别除铁试验。在条件试验确定的最佳条件下,最终获得石英精矿产率为85.86%,其中+0.10 mm粒级石英精矿Si O2品位为99.50%、含铁0.047%,-0.10 mm粒级Si O2品位为99.10%、含铁0.062%。试验结果较为满意,可为该石英石的提质除铁工艺流程提供技术依据。There is 97.5% SiO2 and 0.51% iron in a quartz ore from Anhui.Iron mainly exists in the form of low intensity magnetic mineral,iron content cannot reduced to lower of 0.07% only through magnetic separation.In order to remove iron and increase purity of quartz,experiments on low intensity magnetic separation-desliming-reverse flotation-classification-high intensity magnetic separation was con-ducted on the basis of ore property.At the optimum condition,quartz concentrate with yield rate of 85.86%,content of SiO2 is 99.50% and iron content is 0.047% for ＋0.10 mm,content of SiO2 is 99.10% and iron content is 0.062% for -0.10 mm.Test result is satisfactory,and can provide techni-cal basis for quartz quality improving and iron removal.

关 键 词：石英石 除铁 反浮选 MD 捕收剂 

分 类 号：TD97[矿业工程—选矿]