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Features of reduction of high-magnesia nickel ore of the serov deposit

Authors
  • Selivanov, E. N.1
  • Sergeeva, S. V.1
  • Udoeva, L. Yu.1
  • 1 Russian Academy of Sciences, Institute of Metallurgy, Ural Division, ul. Amundsena 101, Yekaterinburg, 620016, Russia , Yekaterinburg (Russia)
Type
Published Article
Journal
Russian Journal of Non-Ferrous Metals
Publisher
Allerton Press, Inc.
Publication Date
Dec 01, 2010
Volume
51
Issue
6
Pages
439–442
Identifiers
DOI: 10.3103/S1067821210060015
Source
Springer Nature
Keywords
License
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Abstract

Parameters of reducing the roasting of high-magnesia oxide nickel ore containing, wt %, 1.2 Ni, 0.026 Co, 17.0 Fe2O3, 4.0 Al2O3, 20.2 MgO, and 46.0 SiO2 are evaluated. The degrees of reduction and metallization upon heating the ore with the reducing agent in the range t = 800−1250°C and the sizes of metallic inclusions forming in the course of the process are determined. To separate the phases, the magnetic separation of reducing products at H = 40 and 80 kA/m is used. The best characteristics are attained upon roasting the ore with a reducing agent and a sulfidizing agent at t = 1300°C. In this case, the magnetic fraction contains 7.1% Ni, while the nonmagnetic one contains 0.18% Ni.

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