Pyrometallurgical Treatment of a Nepheline Charge Using Additives of Natural and Technogenic Origin

Prospects for developing the domestic raw material mineral base for producing aluminum and alumina are connected to a significant extent with the development of low-grade resources of natural and technogenic origin. There is considerable potential in unused tailings of apatite-nepheline ore flotation enrichment, natural aluminum silicate within the composition of urtite, ristschorrite and other alkaline rocks. Features are established for a change in indices for opening ore resources during pyrometallurgical treatment of a limestone-nepheline charge and subsequent leaching of sinter in relation to process temperature, nature and amount of raw material additions that make it possible to suggest a fundamental production scheme for inclusion into existing alumina production, i.e., the main raw material for electrolytic primary aluminum production.

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  1. 1.

    A. V. Akimova, O. S. Berezner, N. V. Dudkin, et al., Aluminum Raw Material: State Report on State and Utilization of Mineral Raw Material Resources of the Russian Federation in 2011, Mineral Center of FGUNPP Aerogeologiya (2012), pp. 121–129.

  2. 2.

    V. Ya. Abramov, A. I. Alekseev, and Kh. A. Badal’yants, Combined Processing of Nepheline-Apatite Resources, Metallurgiya, Moscow (1990).

    Google Scholar 

  3. 3.

    I. N. Kitler and Yu. A. Dainer, Nepheline – a Complex Aluminum Industry Raw Material, Metallurgizdat, Moscow (1962).

    Google Scholar 

  4. 4.

    V. T. McLemore, “Nepheline syenite,” in: Industrial Minerals and Rocks (2003), pp. 653–670.

  5. 5.

    V. M. Sizyakov, V. I. Korneev, and V. V. Andreev, Improvement in the Quality of Alumina and Associated Production with Combined Processing of Nepheline, Metallurgiya, Moscow (1986).

    Google Scholar 

  6. 6.

    A. Sh. Gershenkop, T. N. Mukhina, and A. V. Artem’ev, “Features of mineral composition of apatite-nepheline ores of the Olenii stream deposit and their effect on enrichment indices,” Obogash. Rud, No. 3, 33–35 (2014).

  7. 7.

    V. A. Tsukerman, V. S. Selin, and E. S. Goryacheskaya, “Combined treatment of Khibinsk apatite-nepheline ore: economic aspect,” Obogash. Rud, No. 3, 41–46 (2015).

  8. 8.

    S. B. Skaarup, Y. A. Gordeev, and V. V. Volkov, “Dry sintering of nepheline – a new more energy efficient technology,” Light Met., 111–116 (2014).

  9. 9.

    V. M. Sizyakiv, Yu. P. Nazarov, V. N. Brichkin, and E. V. Sizyakov, “Enrichment of laid-up apatite-nepheline ore flotation tailings,” Obogash. Rud, No. 2, 33–40 (2016).

  10. 10.

    L. V. Kozyreva, A. N. Korobeinikov, and Yu. B. Men’shikov, “New variety of ultra-potassium rock in the Khibiny massif, “ in: News in Mineralogy of the Karelo-Kola Region, Izd. KarNTs AN SSSR (1990), pp. 116–119.

  11. 11.

    E. S. Gorbunova, V. I. Zakharov, and A. R. Alishkin, “Chemical enrichment technology for combine processing of ristschorrites,” Obogash. Rud, No. 4, 12–16 (2011).

  12. 12.

    L. F. Bilenko, R. Ya. Dashkevich, A. I. Pivnev, and V. P. Logachev, Features of Limestone-Nepheline Charge Preparation of Aluminum Production, St. Petersburg (1993).

  13. 13.

    V. M. Sizyakov, “Chemical technology features of sintering alkaline aluminosilicates and hydrochemical treatment of sinter cake,” Zap. Gorn. Inst., 217, 102–112 (2016).

    Google Scholar 

  14. 14.

    G. A. Evdokimova, A. Sh. Gershenkop, N. P. Mozgova, and N. V. Fokina, “Biogenic destruction of aluminum-containing minerals on the example of nepheline and kyanite,” Tsvet. Metally, No. 11, 13–16 (2011).

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This work was carried out with financial support of the Russian Federation Ministry of Education and Science (State Contract No. 14.577.21.0127 of October 20, 2014. Unique research identifi er is RFMEFI57714X0127).

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Correspondence to V. Yu. Bazhin.

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Translated from Metallurg, No. 2, pp. 68–74, February, 2017.

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Bazhin, V.Y., Brichkin, V.N., Sizyakov, V.M. et al. Pyrometallurgical Treatment of a Nepheline Charge Using Additives of Natural and Technogenic Origin. Metallurgist 61, 147–154 (2017).

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  • pyrometallurgy
  • nepheline concentrate
  • limestone-nepheline charge
  • raw material additives
  • sintering
  • regimes
  • properties
  • experimental research