Solid-Phase Reduction of Iron from Suroyam Titanomagnetite Ore during Metallization in Rotary Kiln

Abstract:

In this work the solid-phase reduction of iron from the Suroyam titanomagnetite ore was studied during metallization in a rotary kiln. The technique of preparation of the ore and reducing agent for metallization and the process of continuous processing of materials in a rotary kiln were described in detail. For metallization the temperature was chosen 1150°C, due to low melting point of apatite from one of the components. The results of the electron microscope analysis of the initial ore and samples subjected to metallization for 1-hour reduction time were presented. The reduction of iron occurred despite absence of pores and contact with a reducing agent in the grains of titanomagnetite. Iron in the grains of titanomagnetite surrounded by apatite was reduced to wustite; whereas, iron surrounded by clinopyroxene was reduced to metallic iron. This indicated the effect of composition of the gangue materials on the reduction process.

• Periodical: Materials Science Forum (Volume 946)
• Pages: 512-516
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.946.512
• Online since: February 2019
• Authors: K.I. Smirnov*, S.P. Salikhov, Vasiliy R. Roshchin
• Keywords: DRI, Reduction, Rotary Kiln, Solid Phase Reduction, Titanomagnetite

References

[1] L.I. Leontev, N.A. Vatolin, S.V. Shavrin, N.S. Shumakov. Pyrometallurgical processing of complex ores. Moscow. Metallurgy. (1997).

[2] G.V. Zaytsev, N.V. Shikhov, E.A. Chuchmanov. Enrichment of titanium-containing ores. Problems of complex processing of titanomagnetites in the South Urals. Magnitogorsk Press House, (2001) 21-30.

[3] V.A. Reznichenko, V.I. Shabalin. Titanomagnetites. Deposits, chemical technology. Moscow. Science. (1986).

[4] N.V. Panishev, V.F. Rashnikov, B.A. Dubrovsky, E.V. Redin. Metallization of feldspar iron ore and titanomagnetites of the Chelyabinsk region. Proceedings of the Eighth International Industrial Forum Reconstruction of Industrial Enterprises - Breakthrough Technologies in Metallurgy and Mechanical Engineering,. (2016) 48-49.

[5] Y.E. Kapelyushin, V.E. Roshchin, A.V. Roshchin Beneficiation of Vanadium and Titanium Oxides by Using Selective Extraction of Iron in Low-Titanium Magnetite Concentrate. Solid State Phenomena, 265 (2017) 913-918.

DOI: 10.4028/www.scientific.net/ssp.265.913

[6] K.I. Smirnov. Selective extraction of iron from complex iron-titanium oxides. Energetics and metallurgs of the present and the future of Russia: materials of the 17th all-Russian scientific-practical conference of students, graduate students and specialists. Magnitogorsk: Publishing house Nosov Magnitogorsk State Technical University, 220 (2016) 76-78.

DOI: 10.17580/cisisr.2016.02.02

[7] V.E. Roshchin, A.V. Roshchin. Process for the selective extraction of metals from complex ores. Patent of Russian Federation No. 2460813.

[8] V.E. Roshchin, A.V. Asanov, A.V. Roshchin. Possibilities of two-stage processing of titanomagnetite ore concentrates. Russian metallurgy (Metally). 6 (2011) 499-508.

DOI: 10.1134/s0036029511060206

[9] V.E. Roshchin, A.V. Asanov, A.V. Roshchin. Solid-phase prereduction of iron-vanadium concentrates and liquid-phase separation of the products of their reduction Russian metallurgy (Metally). 11 (2010) 1001-1008.

DOI: 10.1134/s0036029510110029

[10] V.E. Roshchin, S.P. Salikhov, A.D. Povolotsky. Solid-phase pre-reduction of iron - the basis of non-waste technologies for processing complex ores and man-made waste. Bulletin of the South Ural State University. Ser. Metallurgy. 16(4) (2016) 78-86.

DOI: 10.14529/met160408

[11] A.V. Asanov, V.E. Roshchin, A.V. Senin, A.V. Roshchin. Thermodynamic analysis of chemical transformation in the solid-phase reduction of titanium-magnetite concentrates. Steel in Translation. 4 (2010)(40) 314-317.

DOI: 10.3103/s0967091210040030

[12] P.A. Gamov, N.V. Mal'kov, V.E. Roshchin. Thermodynamic modelling of the metals' reduction process from the Suroyam titanomagnetite concentrate. Bulletin of the South Ural State University. Ser. Metallurgy. 18(2) (2018) 21-28.

DOI: 10.14529/met180203

[13] 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

[14] A.V. Roshchin, V.E. Roshchin, S.P. Salikhov. Transformation Ion Bond In Metal During Reduction Metal In Complex Oxides. Proceedings of the XX Mendeleev Congress On General And Applied Chemistry. 3 (2016) 109.

[15] V.E. Roshchin, A.V. Roshchin. Physical aspects of solid phase reduction of metals. Electrometallurgy. 1 (2009) 13-22.

[16] V.E. Roshchin, A.V. Roshchin. Physics of the solid-phase oxidation and reduction of metals. Russian metallurgy (Metally). 5 (2015) 354-359.

DOI: 10.1134/s0036029515050146