摘要
通过X射线衍射、镜下鉴定、扫描电镜、矿物参数自动分析仪、化学成分分析等测试技术对尼日利亚某条纹状锰矿石和块状锰矿石进行了工艺矿物学研究。研究表明,两类矿石总体上均属低磷中铁中品位的氧化锰-硅酸锰混合矿石,相对而言块状锰矿石锰品位较低,两种矿样矿物组成基本相同,含量存在一定差异。对影响矿石选别的主要因素进行了分析,可为选矿提供理论依据。
Process mineralogy characteristics of stripe and lump manganese ores from Nigeria were investigated based on characterization by X-ray diffraction,optical microscopy,scanning electronic microscopy,mineral liberation analysis and chemical analysis. It is shown that both kinds of ores are middle-grade mixed ore of manganese oxide and manganese silicate,with low content of phosphorous and middle content of iron. And the Mn grade of the lump manganese ore is comparatively lower. Mineral compositions of both ores are basically the same,although there is some difference in the contents. Possible factors influencing mineral separation were discussed, which can provide theoretical basis for beneficiation practice.
作者
瞿思思
QU Si-si(Changsha Research Institute of Mining and Metallurgy Co Ltd,Changsha 410012,Hunan,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2018年第3期66-70,共5页
Mining and Metallurgical Engineering
关键词
工艺矿物学
锰矿石
氧化锰矿
锰铝榴石
选矿
process mineralogy
manganese ore
manganese oxide ore
spessartine
mineral processing