| 包头强磁粗精矿还原焙烧-磁性分离提高铁精矿品位及降低稀土、铌含量的研究 |
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| 引用本文： | 余永富,陈雯,彭泽友.包头强磁粗精矿还原焙烧-磁性分离提高铁精矿品位及降低稀土、铌含量的研究[J].稀土,2010,31(2). |
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| 作者姓名： | 余永富 陈雯 彭泽友 |
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| 作者单位： | 1. 武汉理工大学,资源与环境工程学院,湖北,武汉,430070;长沙矿冶研究院,湖南,长沙,410012
2. 长沙矿冶研究院,湖南,长沙,410012 |
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| 基金项目： | 国家"十一五"科技支撑计划项目 |
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| 摘 要： | 包头选矿厂现流程中强磁粗选铁精矿含稀土及铌矿物较高,用强磁精选分离铁与硅、稀土、铌,效果不很理想,稀土及铌矿物在强磁精选铁精矿中的损失率较高,对后续工艺回收稀土和铌都将产生较大影响。通过对强磁选粗精矿进行了还原焙烧—磁性分离的探索试验,取得了铁精矿含铁63.53%,铁回收率77.97%,其中含REO降至1.35%,Nb2O5降至0.16%,在铁精矿中稀土损失率降至6.04%,铌的损失率降至26.44%,分选指标较好。
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| 关 键 词： | 包头强磁粗精矿 还原焙烧 磁选 提铁降杂 |
Study of Promoting Iron Grade and Reducing Contents of Rare Earth and Niobium in Baotou Rough Iron Concentrate of High Intensity Magnetic Separation by Reduction Roasting-Magnetic Separation Process |
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| YU Yong-fu,CHEN Wen,PENG Ze-you.Study of Promoting Iron Grade and Reducing Contents of Rare Earth and Niobium in Baotou Rough Iron Concentrate of High Intensity Magnetic Separation by Reduction Roasting-Magnetic Separation Process[J].Chinese Rare Earths,2010,31(2). |
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| Authors: | YU Yong-fu CHEN Wen PENG Ze-you |
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| Affiliation: | YU Yong-fu1,2,CHEN Wen1,PENG Ze-you2(1.Institute of Resource , Environment Engineering,Wuhan University of Technology,Wuhan 430070,China,2.Changsha Research Institute of Mining , Metallurgy,Changsha 410012,China) |
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| Abstract: | In the existing beneficiation flowsheet of Baotou plant,the contents of rare earth and niobium minerals are higher in rough iron concentrate of high intensity magnetic separation,which leads to dissatisfactory results of iron mineral separation from silicate,rare earth and niobium minerals in the cleaning stage of high intensity magenetic separation.The loss of rare earth and niobium minerals is higher in the iron concentrate of cleaning separation,which also causes a harmful effect on the following recover... |
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| Keywords: | Baotou rough iron concentrate of high intensity magnetic separation reduction roasting magnetic separation promoting iron grade and reducing impurities of iron concentrate |
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