The grade of iron concentrate from the Dahongshan copper mine is low,and the impurity SiO2 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 SiO2 content in concentrate.
关键词
铁精矿/工艺矿物学研究/磁铁矿/单体解离度
Key words
iron concentrate/process mineralogy study/magnetite/single separation degree
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