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Studying the recovery of magnesium from serpentinite with a hydrochloric acid solution

  • Metallurgy of Nonferrous Metals
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Abstract

Laboratory studies of the efficiency of the leaching of magnesium from serpentinite with a hydrochloric acid solution depending on the initial material coarseness, the acid concentration, the temperature, the time, and the stirring intensity were performed. The temperature was revealed to be the most significant factor. Its increase from 40 to 80°C with a leaching time of 4 h, a stirring speed of ∼500 rpm, and an acid concentration of 18% increased the recovery of magnesium by a factor of 2.0–2.5. Pore diffusion was established to be the rate-controlling stage of the process.

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References

  1. Zelikman, A.N., Bol’dman, G.M., and Belyaevskaya, L.V., Teoriya gidrometallurgicheskikh protsessov (Theory of Hydrometallurgical Processes), Moscow: Metallurgiya, 1993.

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Authors and Affiliations

  1. Leading Research Institute of Chemical Technology, Kashirskoe sh. 33, Moscow, 115409, Russia

    D. V. Kirichenko & V. A. Tolkachev

Authors
  1. D. V. Kirichenko
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  2. V. A. Tolkachev
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Corresponding author

Correspondence to V. A. Tolkachev.

Additional information

Original Russian Text © D.V. Kirichenko, V.A. Tolkachev, 2012, published in Izvestiya VUZ. Tsvetnaya Metallurgiya, 2012, No. 5, pp. 26–30.

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Kirichenko, D.V., Tolkachev, V.A. Studying the recovery of magnesium from serpentinite with a hydrochloric acid solution. Russ. J. Non-ferrous Metals 54, 18–21 (2013). https://doi.org/10.3103/S1067821213010094

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  • DOI: https://doi.org/10.3103/S1067821213010094

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