| 湖北某难选鲕状赤铁矿还原焙烧-磁选试验 |
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| 引用本文： | 刘若华,孙伟,李珊梅,徐龙华.湖北某难选鲕状赤铁矿还原焙烧-磁选试验[J].金属矿山,2011,40(9):116-119. |
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| 作者姓名： | 刘若华 孙伟 李珊梅 徐龙华 |
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| 作者单位： | 中南大学资源加工与生物工程学院 |
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| 基金项目： | 中南大学前沿研究计划项目 |
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| 摘 要： | 简介了湖北某难选鲕状赤铁矿的工艺矿物学特征，对该矿石还原焙烧的合适温度、还原剂用量、焙烧时间以及磁选的合适场强进行了试验研究。研究表明，铁品位为47.57%的鲕状赤铁矿在焙烧温度为850 ℃、碳粉用量为25%、焙烧时间为60 min、冷淬后磨矿细度为-0.074 mm占85%、磁选场强为127.39 kA/m情况下，能获得铁品位为56.75%、回收率为79.96%的铁精矿产品。
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| 关 键 词： | 鲕状赤铁矿 磁化焙烧 磁选 |
Experiment of Reducing Roasting-magnetic Separation to a Refractory Oolitic Hematite in Hubei Province |
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| Liu Ruohua,Sun Wei,Li Shanmei,Xu Longhua.Experiment of Reducing Roasting-magnetic Separation to a Refractory Oolitic Hematite in Hubei Province[J].Metal Mine,2011,40(9):116-119. |
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| Authors: | Liu Ruohua Sun Wei Li Shanmei Xu Longhua |
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| Affiliation: | School of Minerals Processing and Bioengineering，Central South University; |
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| Abstract: | Briefly introduce the technological mineralogy of a refractory oolitic hematite in Hubei province.The experiment was reasearched on the ore of roasting temperature，dosage of reducing agent，roasting time and magnetic intensity.The result showed when the oolitic hematite of 47.57% iron grade was separated by reducing roasting with the roasting temperature of 850 ℃，dosage of 25% powdered carbon，roasting time of 60 min，grinding size of 65%-0.074 mm after quenching and magnetic intensity of 127.39 kA/m，the grade and recovery of iron concentration could reach to 56.75% and 79.96%，respectively. |
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| Keywords: | Oolitic hematite Magnetizing roasting Magnetic separation |
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