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Nickel Sulfide Concentrate Processing Using Low-Temperature Roasting with Sodium Chloride

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Metallurgist Aims and scope

A method is proposed for processing nickel sulfide concentrates based on low-temperature roasting with sodium chloride. In the course of research, the dependence of valuable component extraction on excess sodium chloride and roasting temperature and duration is determined, and also cinder water and sulphuric acid leaching regimes are optimized. Optimum results are achieved with the following roasting regimes: temperature 400°C, duration 1.5 h, and excess NaCl 50–200% of concentrate weight. A production scheme is proven on a laboratory scale with subsequent two-stage water and sulphuric acid leaching with calculation of the material balance for nickel, copper, cobalt, and iron. Complete extraction into solution is, %: Ni 95, Cu 99, Co 96.

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Authors and Affiliations

  1. National Research Technological University – Moscow Institute of Steel and Alloys (NITU MISiS), Moscow, Russia

    V. A. Imideev, P. V. Aleksandrov, A. S. Medvedev & A. R. Khanapieva

  2. Far Eastern Federal University, Vladivostok, Primorskii Krai, Russia

    O. V. Bazhenova

Authors
  1. V. A. Imideev
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  2. P. V. Aleksandrov
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  3. A. S. Medvedev
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  4. O. V. Bazhenova
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  5. A. R. Khanapieva
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Corresponding author

Correspondence to V. A. Imideev.

Additional information

Translated from Metallurg, No. 5, pp. 30–34, May, 2014.

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Imideev, V.A., Aleksandrov, P.V., Medvedev, A.S. et al. Nickel Sulfide Concentrate Processing Using Low-Temperature Roasting with Sodium Chloride. Metallurgist 58, 353–359 (2014). https://doi.org/10.1007/s11015-014-9915-1

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  • DOI: https://doi.org/10.1007/s11015-014-9915-1

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