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Production of high-purity microcrystalline molybdenum and rhenium powders by reduction in hydrogen-nitrogen media

  • Powder Production Processes and Properties
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Abstract

Possibilities of producing high-purity microcrystalline molybdenum and rhenium powders by direct single-stage reduction of ammonium compounds of molybdenum [(NH4)6Mo7O24 · 4H2O] and rhenium [NH4ReO4] in hydrogen-nitrogen media are considered. Based on the results of investigations of the influence of technological parameters (degree of purity of the initial reactants, temperature, gas mixture composition, reactant feed rate) on the quality of target products, an optimum regime of the reduction process has been established, which ensures the production of high-purity microcrystalline molybdenum and rhenium powders.

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Authors and Affiliations

  1. Moscow Institute of Steel and Alloys (MISiS), National University of Science and Technology, Leninskii pr. 4, Moscow, 119049, Russia

    N. N. Rakova

  2. State Research and Design Institute of Rare-Metal Industry (Giredmet), Bol’shoi Tolmachevskii per. 5/1, Moscow, 119017, Russia

    E. E. Edrennikova, M. V. Vorob’eva & V. V. Ivanov

Authors
  1. N. N. Rakova
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  2. E. E. Edrennikova
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  3. M. V. Vorob’eva
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  4. V. V. Ivanov
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Corresponding author

Correspondence to E. E. Edrennikova.

Additional information

Original Russian Text © N.N. Rakova, E.E. Edrennikova, M.V. Vorob’eva, V.V. Ivanov, 2010, published in Izvestiya VUZ. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya, 2010, No. 3, pp. 16–21.

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Rakova, N.N., Edrennikova, E.E., Vorob’eva, M.V. et al. Production of high-purity microcrystalline molybdenum and rhenium powders by reduction in hydrogen-nitrogen media. Russ. J. Non-ferrous Metals 52, 532–537 (2011). https://doi.org/10.3103/S1067821211060113

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  • DOI: https://doi.org/10.3103/S1067821211060113

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