Mathematical Model of the Reduction of Metals from Complex Polymetallic Types of Ore Applicable to the Electron Mechanism

Abstract:

The mathematical description of the electron mechanism of reduction of metals from complex polymetallic types of ore has been suggested. The description of the mechanism was based on diffusion and thermal processes occurring in the phases of a reducing agent and an oxide, and chemical reactions on the surface of a phase boundary. The effect of the major physics-chemical parameters on the rate of formation and movement of the reducing vacancies was considered. The obtained model allows calculation of the process of metal reduction from the bulk of a complex oxide by using the approach of the electron mechanism, which considers the process of reduction not as the interaction of the reducing agent with molecule of the metal oxide, but as the interaction with the oxygen anion of a crystal lattice.

• Periodical: Materials Science Forum (Volume 946)
• Pages: 517-522
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.946.517
• Online since: February 2019
• Authors: P.A. Gamov*, Alexander D. Drozin
• Keywords: Anion Vacancies, Complex Oxide, Modeling, Solid Phase Reduction

References

[1] V.E. Roshchin, S.P. Salikhov, A.D. Povolotskiy, Solid-phase pre-reduction of iron as a basis of non-waste technologies of processing complex ores and industrial waste, Bulletin of the South Ural State University. Series Metallurgy,. 16(4) (2016) 78-86.

DOI: 10.14529/met160408

[2] V.E. Roshchin, A.V. Roshchin, K.T. Akhmetov, S.P. Salikhov, Role of a Silicate Phase in the Reduction of Iron and Chromium and Their Oxidation with Carbide Formation during the Manufacture of Carbon Ferrochrome, Russian Metallurgy (Metally). 11 (2016) 1092-1099.

DOI: 10.1134/s0036029516090123

[3] Kapelyushin Y. et al. Formation of a Network Structure in the Gaseous Reduction of Magnetite Doped with Alumina, Metallurgical and Materials Transactions B. 48(2) (2017) 889-899.

DOI: 10.1007/s11663-016-0897-1

[4] V.E. Roshchin, A.V. Roshchin, Physics of the solid-phase oxidation and reduction of metals, Russian Metallurgy (Metally). 3 (2015) 19-25.

DOI: 10.1134/s0036029515050146

[5] A.D. Drozin, Rost mikrochastits produktov khimicheskikh reaktsiy v zhidkom rastvore, Izd-vo YuUrGU, Chelyabinsk, (2007).

[6] P.A. Gamov, A.D. Drozin, M.V. Dudorov, V.E. Roshchin, Model for nanocrystal growth in an amorphous alloy, Russian Metallurgy. 11 (2012) 1002-1005.

DOI: 10.1134/s0036029512110055

[7] N.M. Yaparova, A.D. Drozin, Method for internal heat source identification in a rod based on indirect temperature measurements, UralCon. (2017) 93-98.

DOI: 10.1109/uralcon.2017.8120693

[8] A.D. Drozin, Calculating of the True Sizes and the Numbers of Spherical Inclusions in Metal, Metallography, Microstructure, and Analysis. 6(3) (2017) 240-246.

DOI: 10.1007/s13632-017-0354-9

[9] V.E. Roshchin, A.V. Roshchin, Physical interpretation of the theory of reduction/oxidation of metals, Bulletin of the South Ural State University. Series Metallurgy,. 16(4) (2016) 29-39.

DOI: 10.14529/met160404

[10] A.V. Roshchin, V.E. Roshchin, S.P. Salikhov, Transformatsiya ionnoy khimicheskoy svyazi v metallicheskuyu pri vosstanovlenii metallov v kompleksnykh oksidakh, XX Mendeleevskiy s"ezd po obshchey i prikladnoy khimii. 3 (2016) 109-110.