Production of Ferro Alloys from Wolframite Concentrate Using Pressure

Authors

  • N. Yu. Golovchenko Al- Farabi Kazakh National University, Faculty of Chemistry, Al-Farabi av. 71, 050078, Almaty, Kazakhstan
  • O. S. Bayrakova The Institute of Combustion Problems, 172, Bogenbay batir str., 050012, Almaty, Kazakhstan
  • G. I. Ksandopulo The Institute of Combustion Problems, 172, Bogenbay batir str., 050012, Almaty, Kazakhstan
  • S. Kh. Aknazarov The Institute of Combustion Problems, 172, Bogenbay batir str., 050012, Almaty, Kazakhstan

DOI:

https://doi.org/10.18321/ectj85

Abstract

The temperature of aluminotermic processes changes largely depending on appointment, structure and
property of received products. Optimum conditions steal up for each concrete process. One of important
practical questions is influence of temperature and external pressure upon extraction of restored elements
in an ingot. In work concentration and high-speed limits of burning of system WO3-Al are defined. Limits
of burning of system (4.3 – 19.1 g/sm3) are established at dilute from 10 to 300% by a ballast. The factors influencing for speed of burning mixture from tungsten concentrate are investigated. Influence of superfluous pressure on fusion indicators is investigated at reception ferrotungsten from various raw
materials. Modes of preparation of initial raw materials to process of fusion are defined and parametres of
carrying out of process of reception ferrotungsten under pressure are established. It is shown that
superfluous pressure does not shift balance of reaction of restoration of tungsten only suppresses disorder
of a reacting mix and prevents ablation of a reacting mix that promotes increase in an exit of an alloy.

References

1. J.L. Pliner, G.F. Ignatenko, E.A. Rubinstein Metallothermy. Proceedings Kliuchevskoi Ferroalloy Plant. Moscow: Metallurgiya, 1965, Vol. 2, p. 27-35.

2. Grump, I. Prentice, K. Kralutle. Gemb. Sci. And Tecuh, 1969, 1.205.

3. Maksimov E.P. and so on Combustion, Explosion, № 4, (1965).

4. Samsonov G.V., Chastyakov J.L. Metallothermic methods in chemistry and metallurgy. - Moscow: Progress of Chemistry, 1956.

5. A.F. Belyaev, Komkova L.D. // ZhFKh. 1950. - V.34 - Vyp.11. - S. 1302-1311.

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Published

2011-12-22

How to Cite

Golovchenko, N. Y., Bayrakova, O. S., Ksandopulo, G. I., & Aknazarov, S. K. (2011). Production of Ferro Alloys from Wolframite Concentrate Using Pressure. Eurasian Chemico-Technological Journal, 13(3-4), 199–204. https://doi.org/10.18321/ectj85

Issue

Vol. 13 No. 3-4 (2011)

Section

Articles

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