赞比亚某高铁锰矿工艺矿物学特性  

Research on Process Mineralogy of a High-iron Manganese Ore in Zambia

作　　者：刘鹏飞 孙永升[1] 袁帅[1] 韩跃新[1] Liu Pengfei;Sun Yongsheng;Yuan Shuai;Han Yuexin(College of Resource and Civil Engineering,Northeastern University,Shenyang,China)

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819

出　　处：《矿产综合利用》2022年第4期27-32,共6页Multipurpose Utilization of Mineral Resources

基　　金：磁化焙烧过程中铁矿物的物相转化及调控机制(51874071)

摘　　要：赞比亚某高铁锰矿中有用矿物为赤铁矿和各种锰矿物,铁品位为44.71%,锰品位为17.86%。为制定合适的选别工艺流程,通过光学显微镜、化学分析、X射线衍射等手段,对该矿石的化学成分、矿物组成及嵌布特征等方面进行的研究。研究结果表明:该矿石中主要的铁矿物为赤铁矿,含量为61.53%;主要的锰矿物为软锰矿、褐锰矿和硬锰矿,含量分别为18.62%,4.82%和4.66%。最后针对该矿石进行了预富集—磁化焙烧—磁选实验,最终获得铁精矿铁品位平均值为67.97%;铁作业回收率平均值为94.67%。锰精矿锰品位平均值为49.85%;锰作业回收率平均值为88.24%。该研究结果对该矿石的分选工艺流程的制定具有一定的指导意义,同时也能为同类矿石提供借鉴。The useful mineral in a high-iron manganese ore in Zambia is hematite and various manganese minerals,and the iron grade is 44.71%,the manganese grade is 17.86%.In order to make an appropriate sorting process,the chemical composition,mineral composition and embedded characteristics of the ore were studied by optical microscope,chemical analysis and X-ray diffraction.The research results show that the main iron mineral is hematite,the content is 61.53%;the main manganese minerals are anthracite,limonite and soft manganese,the content are 18.62%,4.82%and 4.66%.Finally,pre-concentration-magnetization roasting-magnetic separation test was carried out on the ore,and the average TFe grade was 67.97%,the average recovery rate was 94.67%;the average Mn grade was 49.85%;the average recovery rate was 88.24%.The research results have certain guiding significance for the formulation of the ore sorting process,and also can provide a reference for similar ore.

关 键 词：赞比亚 高铁锰矿工艺矿物学 磁化焙烧 

分 类 号：TD952[矿业工程—选矿]