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Characteristics of coreduction of nickel and molybdenum from oxide systems

  • Theory And Technology Of Sintering Processes, Thermal And Thermochemical Treatment
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Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

We have studied the kinetic characteristics of reduction of nickel and molybdenum from their oxide mixtures. We have monitored the development of the specific surface area during reduction. We calculate the nucleation rate and the apparent activation energy. The reduction temperature for molybdenum in the presence of nickel was shown to decrease appreciably; and unlike the conventional scheme, in which during the first reduction stage MoO3 transforms into MoO2 or molybdenum suboxide, metallic molybdenum appears. Such reduction conditions made it possible to produce fine (Ssp=20 m2/g) powder of the nickel-based solid solution and pure molybdenum from the oxide mixtures precipitated from the salt solutions at 650°C.

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References

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Authors
  1. M. P. Savyak
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  2. I. V. Uvarova
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  3. L. D. Konchakovskaya
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Additional information

Institute of Materials Science, Ukrainian Academy of Sciences, Kiev. Translated from Poroshkovaya Metallurgiya, Nos. 5/6, pp. 52–56, May–June, 1995.

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Savyak, M.P., Uvarova, I.V. & Konchakovskaya, L.D. Characteristics of coreduction of nickel and molybdenum from oxide systems. Powder Metall Met Ceram 34, 272–275 (1995). https://doi.org/10.1007/BF00560129

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  • DOI: https://doi.org/10.1007/BF00560129

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