某低品位菱镁矿浮选提纯试验研究  

RESEARCH ON FLOTATION AND PURIFICATION OF LOW GRADE MAGNESITE

作　　者：纪振明[1] 田鹏杰[1] 陈洲[1] 潘克俭[1] 印万忠[1] 

机构地区：[1]东北大学资源与土木工程学院,沈阳110004

出　　处：《矿冶》2009年第2期30-33,共4页Mining And Metallurgy

基　　金：教育部国家大学生生创新性实验计划项目资助(070213)

摘　　要：菱镁矿是一种重要的非金属矿资源,广泛应用于冶金、建材、化工等行业。低品位菱镁矿不能直接作为煅烧优质耐火材料的原料,而高品位的菱镁矿随着不断开采,储量越来越少,因此低品位菱镁矿的利用已势在必行。本实验用样为低品位菱镁矿,经浮选可获得MgO品位47%以上、SiO2含量0.2%以下的特级菱镁矿产品。精矿MgO回收率为76.25%。这说明此浮选流程适用于大石桥地区菱镁矿的提纯。Magnesite is a very important non-metallic mineral. And it is widely applied in metallurgic, building materials, chemical industry and so on. Low grade magnesite can＇t be used directly as material of refractory, and as the continuously mining, the reserves of high grade magnesite becomes less and less. Therefore, for better utilization the resources, it is necessary to find a purification method, which is suitable for low grade magnesite. The research used the kind of low grade magnesite as the material. The high grade magnesite obtained contains more than 47% of MgO and less than 0.2% of SiO2 by flotation, the recovery ratio of magnesium oxide of concentrate is 76.25%. The results show the flotation flowsheet is applicable for the purification of the magnesite in Dashiqiao areas.

关 键 词：菱镁矿 浮选 低品位 

分 类 号：TD973.7[矿业工程—选矿]