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Volume 21 Issue 10
Oct.  2014
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Xiao-hui Tang, Run-zao Liu, Li Yao, Zhi-jun Ji, Yan-ting Zhang, and Shi-qi Li, Ferronickel enrichment by fine particle reduction and magnetic separation from nickel laterite ore, Int. J. Miner. Metall. Mater., 21(2014), No. 10, pp. 955-961. https://doi.org/10.1007/s12613-014-0995-5
Cite this article as:
Xiao-hui Tang, Run-zao Liu, Li Yao, Zhi-jun Ji, Yan-ting Zhang, and Shi-qi Li, Ferronickel enrichment by fine particle reduction and magnetic separation from nickel laterite ore, Int. J. Miner. Metall. Mater., 21(2014), No. 10, pp. 955-961. https://doi.org/10.1007/s12613-014-0995-5
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Ferronickel enrichment by fine particle reduction and magnetic separation from nickel laterite ore

  • 通讯作者:

    Run-zao Liu    E-mail: liurunzao@metall.ustb.edu.cn

  • Ferronickel enrichment and extraction from nickel laterite ore were studied through reduction and magnetic separation. Reduction experiments were performed using hydrogen and carbon monoxide as reductants at different temperatures (700–1000°C). Magnetic separation of the reduced products was conducted using a SLon-100 cycle pulsating magnetic separator (1.2 T). Composition analysis indicates that the nickel laterite ore contains a total iron content of 22.50wt% and a total nickel content of 1.91wt%. Its mineral composition mainly consists of serpentine, hortonolite, and goethite. During the reduction process, the grade of nickel and iron in the products increases with increasing reduction temperature. Although a higher temperature is more favorable for reduction, the temperature exceeding 1000°C results in sintering of the products, preventing magnetic separation. After magnetic separation, the maximum total nickel and iron concentrations are 5.43wt% and 56.86wt%, and the corresponding recovery rates are 84.38% and 53.76%, respectively.
  • Ferronickel enrichment by fine particle reduction and magnetic separation from nickel laterite ore

    + Author Affiliations
    • Ferronickel enrichment and extraction from nickel laterite ore were studied through reduction and magnetic separation. Reduction experiments were performed using hydrogen and carbon monoxide as reductants at different temperatures (700–1000°C). Magnetic separation of the reduced products was conducted using a SLon-100 cycle pulsating magnetic separator (1.2 T). Composition analysis indicates that the nickel laterite ore contains a total iron content of 22.50wt% and a total nickel content of 1.91wt%. Its mineral composition mainly consists of serpentine, hortonolite, and goethite. During the reduction process, the grade of nickel and iron in the products increases with increasing reduction temperature. Although a higher temperature is more favorable for reduction, the temperature exceeding 1000°C results in sintering of the products, preventing magnetic separation. After magnetic separation, the maximum total nickel and iron concentrations are 5.43wt% and 56.86wt%, and the corresponding recovery rates are 84.38% and 53.76%, respectively.
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