大红山铜矿铁精矿工艺矿物学研究  

Process Mineralogy Study of Iron Concentrate in Dahongshan Copper Ore

作　　者：李娜 骆忠 李亚忠 龚学东 任骏 LI Na;LUO Zhong;LI Yazhong;GONG Xuedong;REN Jun(Yuxi Mining Industry Co.,Ltd.,Yuxi,Yunnan 653405,China)

机构地区：[1]玉溪矿业有限公司,云南玉溪653405

出　　处：《云南冶金》2024年第5期50-55,共6页Yunnan Metallurgy

摘　　要：大红山铜矿铁精矿品位低,杂质SiO_(2)含量超标。通过开展工艺矿物学研究,查明了矿石的物质组成、元素赋存状态、粒级组成、嵌布特征和单体解离特征。结果表明:影响铁精矿品位的主要因素是+0.037 mm粒级的铁品位仅为52.16%,磁铁矿与石英等脉石矿物相互连生和包裹,单体解离不充分,且磁铁矿有明显的磁团聚现象,为后续的提高铁精矿品位,降低精矿中SiO_(2)含量选矿试验研究提供了技术依据。The grade of iron concentrate from the Dahongshan copper mine is low,and the impurity SiO_(2) content is exceeded.The mineral composition,element occurrence state,size fraction composition,dissemination characteristics,and monomer dissociation characteristics of ore are found out through the development of process mineralogy study.Results show:the main influence factors for iron concentrate's grade are shown below:the iron grade with+0.037 mm size fraction is only 52.16%,magnetite intergrowthed and coated with quartz and other gangue minerals,the single separation is insufficiency,magnetite has obvious magnetic agglomeration,which provide technical basis for follow-up mineral processing experimental study that increasing iron concentration grade,decreasing SiO_(2) content in concentrate.

关 键 词：铁精矿 工艺矿物学研究 磁铁矿 单体解离度 

分 类 号：TD952[矿业工程—选矿]