现代矿业
現代礦業
현대광업
Express Information of Mining Industry
2011年
9期
14-16
,共3页
杨大兵%沈进杰%鲁维%唐庆华
楊大兵%瀋進傑%魯維%唐慶華
양대병%침진걸%로유%당경화
低品位褐铁矿%氯化还原焙烧%弱磁选工艺%磁化焙烧
低品位褐鐵礦%氯化還原焙燒%弱磁選工藝%磁化焙燒
저품위갈철광%록화환원배소%약자선공예%자화배소
Low-grade limonite%Chloride reduction roasting%Iow intensity magnetic separation process%Magnetizing roast
贵州某低品位褐铁矿主要以针铁矿、菱铁矿和少量磁铁矿、黄铁矿形式存在,属于难选铁矿石,常规的磁选、浮选、磁化焙烧—弱磁选均不能获得满意的指标。试验采用氯化还原焙烧—弱磁选工艺流程处理该矿石,获得了铁精矿品位为60.96%,回收率为87.16%的良好指标,为该矿石的开发利用提供了新思路。
貴州某低品位褐鐵礦主要以針鐵礦、蔆鐵礦和少量磁鐵礦、黃鐵礦形式存在,屬于難選鐵礦石,常規的磁選、浮選、磁化焙燒—弱磁選均不能穫得滿意的指標。試驗採用氯化還原焙燒—弱磁選工藝流程處理該礦石,穫得瞭鐵精礦品位為60.96%,迴收率為87.16%的良好指標,為該礦石的開髮利用提供瞭新思路。
귀주모저품위갈철광주요이침철광、릉철광화소량자철광、황철광형식존재,속우난선철광석,상규적자선、부선、자화배소—약자선균불능획득만의적지표。시험채용록화환원배소—약자선공예류정처리해광석,획득료철정광품위위60.96%,회수솔위87.16%적량호지표,위해광석적개발이용제공료신사로。
A certain low-grade limonite in Guizhou mainly exists in goethite,siderite and minor magnetite and pyrite,which belongs to the refractory iron ore.The conventional magnetic separation,flotation,magnetic roasting-low intensity magnetic separation can not reach the satisfactory indicators.A good index with Fe concentrate grade of 60.96% and recovery of 87.16% were obtained by the process of chloride reduction roasting-low intensity magnetic separation,which provides a new idea for the development and utilization of the minerals.
