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Volume 20 Issue 5
May  2013
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Yong-sheng Sun, Yue-xin Han, Peng Gao, Ze-hong Wang,  and Duo-zhen Ren, Recovery of iron from high phosphorus oolitic iron ore using coal-based reduction followed by magnetic separation, Int. J. Miner. Metall. Mater., 20(2013), No. 5, pp. 411-419. https://doi.org/10.1007/s12613-013-0744-1
Cite this article as:
Yong-sheng Sun, Yue-xin Han, Peng Gao, Ze-hong Wang,  and Duo-zhen Ren, Recovery of iron from high phosphorus oolitic iron ore using coal-based reduction followed by magnetic separation, Int. J. Miner. Metall. Mater., 20(2013), No. 5, pp. 411-419. https://doi.org/10.1007/s12613-013-0744-1
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Recovery of iron from high phosphorus oolitic iron ore using coal-based reduction followed by magnetic separation

  • 通讯作者:

    Yue-xin Han    E-mail: dongdafulong@mail.neu.edu.cn

  • Oolitic iron ore is one of the most important iron resources. This paper reports the recovery of iron from high phosphorus oolitic iron ore using coal-based reduction and magnetic separation. The influences of reduction temperature, reduction time, C/O mole ratio, and CaO content on the metallization degree and iron recovery were investigated in detail. Experimental results show that reduced products with the metallization degree of 95.82% could be produced under the optimal conditions (i.e., reduction temperature, 1250℃; reduction time, 50 min; C/O mole ratio, 2.0; and CaO content, 10wt%). The magnetic concentrate containing 89.63wt% Fe with the iron recovery of 96.21% was obtained. According to the mineralogical and morphologic analysis, the iron minerals had been reduced and iron was mainly enriched into the metallic iron phase embedded in the slag matrix in the form of spherical particles. Apatite was also reduced to phosphorus, which partially migrated into the metallic iron phase.
  • Recovery of iron from high phosphorus oolitic iron ore using coal-based reduction followed by magnetic separation

    + Author Affiliations
    • Oolitic iron ore is one of the most important iron resources. This paper reports the recovery of iron from high phosphorus oolitic iron ore using coal-based reduction and magnetic separation. The influences of reduction temperature, reduction time, C/O mole ratio, and CaO content on the metallization degree and iron recovery were investigated in detail. Experimental results show that reduced products with the metallization degree of 95.82% could be produced under the optimal conditions (i.e., reduction temperature, 1250℃; reduction time, 50 min; C/O mole ratio, 2.0; and CaO content, 10wt%). The magnetic concentrate containing 89.63wt% Fe with the iron recovery of 96.21% was obtained. According to the mineralogical and morphologic analysis, the iron minerals had been reduced and iron was mainly enriched into the metallic iron phase embedded in the slag matrix in the form of spherical particles. Apatite was also reduced to phosphorus, which partially migrated into the metallic iron phase.
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