Paper Titles
Development of the Process for Obtaining Iron-Ore Pellets with Required Metallurgical Properties
p.450
Kinetics of Siderite Ore Roasting in the Shaft Furnace
p.456
Research on the Thermal Work of the Drum-Type Chamber Furnace with a Constant Temperature of the Working Space
p.462
Study on Thermal Operation and Design of Ring Furnace of the Pipe Rolling Plant
p.468
Zinc Ferrite Decomposition by Sodium Carbonate and Calcium Oxide at Roasting of Steelmaking Dust
p.474
Development Features of Thermal and Gas-Dynamic Performance of Mineral Wool Cupola Furnace
p.480
Particular Oxydation Features of Various Mechanical Strength Cokes
p.486
Fundamental Research as a Basis for the Creation of New Technologies in Steel Ladle Metallurgy
p.493
Improvement of Agglomeration Technology by a Sinter Mix Preheating
p.500

Zinc Ferrite Decomposition by Sodium Carbonate and Calcium Oxide at Roasting of Steelmaking Dust

Article Preview

Abstract:

When re-melting scrap in electric arc furnaces (EAF), dust is formed. This dust is a rich zinc-containing raw material. The composition of the EAF-dust from JSC “Pervouralsk New Pipe Plant” was investigated. Dust contains 18 wt.% of zinc, more than 1/3 of zinc is a part of the slightly soluble in acids and alkalis of zinc ferrite ZnFe2O4. The aim of the work is to study the effect of roasting temperatures of 700, 850 and 1000 °C and the effect of CaO and Na2CO3 additives on the decomposition of zinc ferrite. Thermodynamic analysis of chemical transformations in dust during roasting showed that the additions of CaO and Na2CO3 provide destruction of zinc ferrite and promote the transfer of zinc into the acid-soluble form of ZnO. The effect of the roasting temperature, the duration of roasting and the amount of calcium oxide and sodium carbonate additions on the degree of zinc transition into acid-soluble form was studied experimentally. The best results were obtained at 1000 oС. The increase in the roasting time in the interval from 1 to 3 hours promotes an increase in the concentration of acid-soluble zinc in the cinder. The combined additions of 36 wt.% of Na2CO3 and 19 wt.% of CaO above the dust mass are optimal. The proportion of acid-soluble zinc in the cinder increased to 97–99 %, as a result of roasting under optimal conditions.

You might also be interested in these eBooks
Materials Science and Metallurgical Technology View Preview

Info:

Periodical:

Materials Science Forum (Volume 946)

Pages:

474-479

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.946.474

Citation:

Cite this paper

Online since:

February 2019

Authors:

A.G. Ryazanov*, A.V. Senin, O.V. Khmeleva

Keywords:

Electric Arc Furnace Dust, Roasting, Thermodynamic Analysis, Zinc, Zinc Ferrite, Zinc Oxide

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2019 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] Information on http://www.ilzsg.org/static.

Google Scholar

[2] A.V. Senin, I.V. Chumanov, Thermodynamic analysis of refining the iron melt from zinc, Bulletin of the South Ural State University Series Metallurgy 13 1 (2013) 176-178.

Google Scholar

[3] V.V. Pereskoka, L.V. Kamkina, Y.S. Projdak, A.P. Stovpchenko, and M.I. Kvichanska, Reducing and thermal treatment of electric filter dust of electric arc furnace, Bulletin of the Priazov State Technical University 21 (2010) 13-16.

Google Scholar

[4] R.A. Shawabkeh, Hydrometallurgical extraction of zinc from Jordanian electric arc furnace dust, Hydrometallurgy, 104 2 (2010) 61-65.

DOI: 10.1016/j.hydromet.2010.04.014

Google Scholar

[5] C.A. Pickles, Thermodynamic analysis of the selective chlorination of electric arc furnace dust, J. Hazard. Mater., 166 2 (2009) 1030-1042.

DOI: 10.1016/j.jhazmat.2008.11.110

Google Scholar

[6] A.G. Guézennec, J.C. Huber, F. Patisson, P. Sessiecq, J.P. Birat, and D. Ablitzer, Dust formation in electric arc furnace: birth of the particles, Powder Technology 157 (2005) 2-11.

DOI: 10.1016/j.powtec.2005.05.006

Google Scholar

[7] J.-C. Huber, F. Patisson, P. Rocabois, J.-C. Birat, and D. Ablitzer, Some means to reduce emissions and improve the recovery of electric arc furnace dust by controlling the formation mechanisms, in: Proc. Rewas'99 – Global Symposium on Recycling Waste Treatment and Clean Technology vol. II, TMS, San Sebastian, 1999, 1483–1492.

DOI: 10.1016/j.powtec.2005.05.006

Google Scholar

[8] A.M. Panshin, L.I. Leontiev, P.A. Kozlov, V.G. Dubanov, A.V. Zatonsky, and D.A. Ivakin, Technology of dust processing of electric arc furnaces of OJSC Severstal in the Welz complex of JSC CZP, Ecology and Industry of Russia 11 (2012) 4-6.

Google Scholar

[9] J.L. Roth, R. Frieden, T. Hansmann, J. Monai, and M. Solvi, PRIMUS a new process for recycling byproducts and producing virgin iron, Rev. Metall. 98 11 (2001) 987–996.

DOI: 10.1051/metal:2001140

Google Scholar

[10] J. Antrekowitsch, H. Antrekowitsch, Hydrometallurgically recovering zinc from electric arc furnace dusts, JOM 53 12 (2001) 26-28.

DOI: 10.1007/s11837-001-0008-9

Google Scholar

[11] C.A. Pickles, Thermodynamic analysis of the selective carbothermic reduction of electric arc furnace dust, J. Hazard. Mater. 150 2 (2008) 265-278.

DOI: 10.1016/j.jhazmat.2007.04.097

Google Scholar

[12] C.C. Wu, F.C. Chang, W.S. Chen, M.S. Tsai, and Y.N. Wang, Reduction behavior of zinc ferrite in EAF-dust recycling with CO gas as a reducing agent, J. Environ. Manage. 143 (2014), 208-213.

DOI: 10.1016/j.jenvman.2014.04.005

Google Scholar

[13] T. Suetens, B. Klaasen, K. Van Acker, and B. Blanpain, Comparison of electric arc furnace dust treatment technologies using exergy efficiency, Journal of cleaner production 65 (2014) 152-167.

DOI: 10.1016/j.jclepro.2013.09.053

Google Scholar

[14] V. Montenegro, S. Agatzini-Leonardou, P. Oustadakis, and P. Tsakiridis, Hydrometallurgical treatment of EAF dust by direct sulphuric acid leaching at atmospheric pressure, Waste and Biomass Valorization 7 6 (2016) 1531-1548.

DOI: 10.1007/s12649-016-9543-z

Google Scholar

[15] M.H. Morcali, O. Yucel, A. Aydin, and B. Derin, Carbothermic reduction of electric arc furnace dust and calcination of waelz oxide by semi-pilot scale rotary furnace, Journal of Mining and Metallurgy Section B Metallurgy 48 2 (2012) 173-184.

DOI: 10.2298/jmmb111219031m

Google Scholar

[16] A. J. B. Dutra, P. R. P. Paiva, and L. M. Tavares, Alkaline leaching of zinc from electric arc furnace steel dust, Minerals engineering 19 5 (2006) 478-485.

DOI: 10.1016/j.mineng.2005.08.013

Google Scholar

[17] R. Chairaksa-Fujimoto, Y. Inoue, N. Umeda, S. Itoh, and T. Nagasaka, New pyrometallurgical process of EAF dust treatment with CaO addition, International Journal of Minerals Metallurgy and Materials 22 8 (2015) 788-797.

DOI: 10.1007/s12613-015-1135-6

Google Scholar

[18] S.A. Yakornov, A.M. Pan'shin, P.I. Grudinsky, V.G. Dyubanov, L.I. Leont'ev, P.A. Kozlov, and D.A. Ivakin, Thermodynamic analysis of the zinc ferrite decomposition by lime in the dust of the electric arc furnace, News of higher educational institutions Non-ferrous metallurgy 5 (2017) 28-33.

DOI: 10.17073/0021-3438-2017-5-28-33

Google Scholar

[19] H. Moridera, S. Kotoni, M. Takeuchi, T. Shigezumi, S.Miyahara and S.Matauoka Status of environment friendly process and study on zinc recovery from stell plant dust in Japan, in: Galvatech'95 Conference Proceeding, ISS, Pittsburgh, 1995, 549-551.

Google Scholar

[20] J. D. Sloop, EAF Dust recycling at Ameristeel, in: Proceedings of Fourth International Symposium on Recycling of Metals and Engineered Materials, MMMS, Pittsburgh, 2000, pp.421-426.

DOI: 10.1002/9781118788073.ch36

Google Scholar

[21] V.R. Daiga, D.A. Horne, Production of crude zinc oxide from steel mill waste oxides using a rotary hearth furnace, in: Proceedings of Fourth International Symposium on Recycling of Metals and Engineered Materials, MMMS, Pittsburgh, 2000, pp.361-368.

DOI: 10.1002/9781118788073.ch31

Google Scholar

[22] Information on http://nano.susu.ru.

Google Scholar