从硫酸烧渣中获取高品位铁精矿的技术  

TECHNOLOGY OF OBTAINING HIGH-GRADE IRON CONCENTRATE FROM PYRITE CINDER

作　　者：刘之能[1] 任佳[1] 方昊[1] 余悦[1] 

机构地区：[1]北京矿冶研究总院,北京100160

出　　处：《矿冶》2015年第6期83-86,共4页Mining And Metallurgy

摘　　要：通过矿物学研究查明了硫酸烧渣的矿物学性质。烧渣含铁为57.1%,杂质为石英、金云母、石膏等矿物;石英等矿物被包裹在三氧化二铁中,石膏填充在金属缝隙中或包裹在金属体外围。细颗粒间的团聚不利于磁选,通过重选摇床和阳离子反浮选脱硅联合工艺流程,显著提高铁精矿品位。铁总回收率大于85%。The mineralogical study identified the properties of a pyrite cinder sample,which contains ferric oxide,quartz,mica,gypsum,etc. with a Fe-grade of TFe 〉57. 1%. The impurities are wrapped in ferric oxide.Gypsum fills in cracks or wraps outside the iron oxide. Agglomeration of the fine particles made magnetic separation difficult. High-grade iron concentrate can be obtained by gravity separation and cationic reverse flotation separation with a total iron recovery greater than 85%.

关 键 词：硫酸烧渣 矿物学 重选 阳离子反浮选 高品位铁精矿 

分 类 号：X781.3[环境科学与工程—环境工程]