Advertisement

Journal of Mining Science

, Volume 54, Issue 2, pp 300–305 | Cite as

Improvement of Oxidizing Roasting of Molybdenite Concentrate by Addition of Magnesite

  • D. P. Khomoksonova
  • E. S. Kashkak
  • I. G. AntropovaEmail author
Mineral Dressing
  • 2 Downloads

Abstract

The results of the thermodynamic modeling are presented for oxidizing roasting of refractory molybdenite (MoS2) with magnesite (MgCO3). The phase and chemical compositions of the MoS2–MgCO3–O2 system and its changes are determined depending on the temperature and quantity of the additive agent. The modeling reveals feasibility of thermochemical decomposition of molybdenite with the formation of waterand soda-soluble compounds MgMoO4 and MgSO4, which is an evidence of efficiency of magnesium carbonate in the capacity of an additive agent. The optimal conditions of the thermochemical decomposition of molybdenite determined theoretically from thermodynamic calculations are proved experimentally.

Keywords

Molybdenite concentrate magnesite thermodynamic modeling roasting magnesium molybdate magnesium sulfate 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Zelikman, A.N. and Meerson, G.A., Metallurgiya redkikh metallov (Rare Metal Metallurgy), Moscow: Metallurgiya, 1973.Google Scholar
  2. 2.
    Liu W., Xu H., Yang X., and Shi X., Extraction of Molybdenum from Low-Grade Ni-Mo Ore in Sodium Hypochlorite Solution under Mechanical Activation, Minerals Engineering, 2011, vol. 24, no. 14, pp. 1580–1585.CrossRefGoogle Scholar
  3. 3.
    Amer, A.M., Hydrometallurgical Recovery of Molybdenum from Egyptian Qattar Molybdenite Concentrate, Physicochem. Probl. Min. Proc., 2011, vol. 47, no. 14, pp. 105–112.Google Scholar
  4. 4.
    Aleksandrov, P.V., Medvedev, A.S., Milovanov, M.F., Imideev, V.A., Kotova, S.A., and Moskovskikh, D.O., Molybdenum Recovery from Molybdenite Concentrates by Low-Temperature Roasting with Sodium Chloride, Int. J. Min. Proc., 2017, vol. 161, pp. 13–20.CrossRefGoogle Scholar
  5. 5.
    Vatolin, N.A., Khalezov, B.D., Kharin, E.I., and Zelenin, E.A., Review of Ways to Process Molybdenite Concentrates and Search for an Ecologically Friendly Process, GIAB, 2011, no. 12, pp. 170–175.Google Scholar
  6. 6.
    Khalezov, B.D., Kharin, E.I., Vatolin, N.A., and Zelenin, R.A. RF Patent no. 2536615, Byull Izobret., 2014, no. 36, p. 7.Google Scholar
  7. 7.
    Saily, A., Khurana, U., Yadav, S.K., and Tandon S.N. Thiophosphinic Acids as Selective Extractants for Molybdenum Recovery from a Low Grade Ore and Spent Catalysts, Hydrometallurgy, 1996, vol. 41, pp. 99–105.CrossRefGoogle Scholar
  8. 8.
    Olson, G.J. and Clark, T.R., Bioleaching of Molybdenite, Hydrometallurgy, 2008, vol. 93, pp. 10–15.CrossRefGoogle Scholar
  9. 9.
    Abdollahi, H., Noaparast, M., Shafaei, S.Z., Manafi, Z., Munoz, J.A., and Tuovinen, O.H., Silver-Catalyzed Bioleaching of Copper, Molybdenum and Rhenium from a Chalcopyrite–Molybdenite Concentrate, Int. Biodeterioration & Biodegradation, 2015, vol. 104, no. 1–2, pp. 194–200.CrossRefGoogle Scholar
  10. 10.
    Lasheen, T.A., El-Ahmady, M.E., Hassib, H.B., and Helal, A.S., Molybdenum Metallurgy Review: Hydrometallurgical Routes to Recovery of Molybdenum from Ores and Mineral Raw Materials, Min. Proc. Extr. Metall. Rev., 2015, vol. 36, no. 3, pp. 145–173.CrossRefGoogle Scholar
  11. 11.
    Vladimirov, L.P., Termodinamicheskie raschety ravnovesiya metallurgicheskikh reaktsii (Thermodynamic Calculations of Metallurgical Reaction Equilibrium), Moscow: Metallurgiya, 1970.Google Scholar
  12. 12.
    Belov, E.G. and Trusov, B.G., Termodinamicheskoe modelirovanie khimicheski reagiruyushchikh system (Thermodynamic Modeling of Chemically Reacting Systems), Moscow: MGTU, 2013.Google Scholar

Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • D. P. Khomoksonova
    • 1
  • E. S. Kashkak
    • 2
  • I. G. Antropova
    • 1
    Email author
  1. 1.Baikal Institute of Nature Management, Siberian BranchRussian Academy of SciencesUlan-UdeRussia
  2. 2.Tuva State UniversityKyzylRussia

Personalised recommendations