Process Development for Integrated Use of Metallurgical Production Wastes

Abstract:

A physicochemical mechanism was studied for carbon thermal reduction of zinc and iron oxides from blast furnace slurries as well as from gas cleaning unit dusts of steelmaking furnaces. With the use of the kinetic analysis the optimal conditions were defined for the carbon thermal reduction as well as the initial data for the development of the joint carbon thermal reduction processes of zinc and iron oxides. An appropriate and clean process was developed; it allows pellet production from zinc containing dusts and their processing in a rotating furnace with an almost complete zinc rundown and trapping in the hose filters; while the metallic iron remaining in the pellets may be used for conversion. The data obtained through the industrial testing confirms the appropriateness of the process implementation and allows the cost effectiveness analysis of the zinc containing dust reclaiming.

• Periodical: Materials Science Forum (Volume 1052)
• Pages: 467-472
• DOI: https://doi.org/10.4028/p-u76428
• Online since: February 2022
• Authors: Boris P. Yur'ev, Vyacheslav A. Dudko*
• Keywords: Blast Furnace Slurries, Carbon Thermal Reduction, Filters, Metallic Iron, Steelmaking Dusts, Zinc and Iron Oxides, Zinc Containing Dusts

References

[1] M.M. Lakernick, G.M. Pakhomova, Zinc and Cadmium Metallurgy, Metallurgy, Moscow, (1969).

[2] V. Kamil, S. Yan, V. Yana, Zinc Rundown from Steelmaking Dust, Chemical Process Operations. 21 (2010) 739-744.

[3] A.A. Popov, G.V. Petrov, Disposal of zinc-containing dust from steelmaking, Irkutsk State Technical University Bulletin. 4 (2016) 169-177.

[4] A.A. Andersson, H. Ahmed, J. Rosenkranz, C. Samuelsson, B. Björkman, Characterization and upgrading of a low zinc-containing and fine blast furnace sludge - A multi-objective analysis, ISIJ International. 57 (2017) 262-271.

DOI: 10.2355/isijinternational.isijint-2016-512

[5] A.M. Panshin, L.I. Leontiev, P.A. Kozlov, V.G. Djubanov, A.V. Zatonsky, D.A. Ivankin, Processing of electric arc furnace dust of Severstal, JSC at Waeltz facility of Chelyabinsk pyrolysis plant, JSC, Environment and Industry of Russia. 11 (2012) 4-6.

DOI: 10.17580/tsm.2015.05.14

[6] Y. Zhou, L. Wu, J. Wang, H. Wang, Y. Dong, Separation of ZnO from the stainless steelmaking dust and graphite mixture by microwave irradiation, High Temperature Materials and Processes. 34 (2015) 177-184.

DOI: 10.1515/htmp-2013-0118

[7] J. Antrekowitsch, G. Rösler, S. Steinacker, State of the art in steel mill dust recycling, Chemil-Ingenieur-Technik. 87 (2015) 1498-1503.

DOI: 10.1002/cite.201500073

[8] B. Geier, H. Raupenstrauch, W. Reiter, K. Pilz, Processing of low zinc containing steel mill dusts with the recodust-process, in: Proceedings of the 6th International Congress on the Science and Technology of Steelmaking May, 2015, pp.951-953.

[9] X. Lin, Z. Penga, J. Yana, Z. Lia, J.-Y. Hwangb, Y. Zhanga, G. Lia, T. Jianga, Pyrometallurgical recycling of electric arc furnace dust, Journal of Cleaner Production. 149 (2017) 1079-1100.

DOI: 10.1016/j.jclepro.2017.02.128

[10] F.-P. Tang, S.-J. Yu, F. Qian, H.-Y. Hou, X.-F.Wang, X.-G. Ma. Research and practice on self-reductive dezincification of composite dust pellet, Kang T'ieh/Iron and Steel. 51 (2016) 89-93 and 111.

[11] P. Sarfo, A. Das, G. Wyss, C. Young, Recovery of metal values from copper slag and reuse of residual secondary slag, Waste Management. 70 (2017) 272-281.

DOI: 10.1016/j.wasman.2017.09.024

[12] P.A. Kozlov, A.M. Panshin, V.N. Vyatkin, Yu.V. Reshetnikov, Research and development of pyrometallurgical process of copper industry waste processing with zinc, Lead and Tin Removal, Ferrous Metals. 15 (2015) 46-50.

[13] A.M. Panshin, P.A. Kozlov, D.A. Ivankin, V.N. Vyatkin, Thermodynamic and kinetic analysis of zinc, lead and tin rundown in Waeltz Kiln when processing dusty polymetallic middling products of copper industry, Ferrous Metals. 8 (2013) 41-44.

[14] A.M. Panshin, R.M. Shakirzyanov, P.A. Izbrekht, A.V. Zatonsky, Major improvement areas of zinc manufacture at Chelyabinsk zinc plant, Ferrous Metals. 5 (2015) 19-21.

DOI: 10.17580/tsm.2015.05.03

[15] P. Khammershmidt, P. Hilbrans, Kh.Kh. Lackman, O. Fogt, Zinc and lead removal from dusts and slurries at agglomerate production, Ferrous Metals. 1 (1987) 25-30.

[16] G. Mayer, K.G. Fopel, V. Yansen, Processing of dust and slurry from blast furnace and converter plant gas cleaning in rotating furnaces, Ferrous Metals. 24 (1976) 3-7.

[17] I.N. Tanutrov, On zinc reduction with carbon, Bulletin of the USSR Academy of Sciences. Metals. 1 (1983) 11-15.

[18] A.S. Kolesnikov, Thermodynamic simulation of silicon, iron reduction and rundown of zinc, lead in zinc-limonite ore-carbon, University Bulletin. Ferrous Metallurgy. 5 (2014) 11-15.

DOI: 10.17073/0021-3438-2014-5-11-15

[19] L.M. Simonyan, A.A. Alpatova, Forecasting of zinc and lead performance at electric steel making, Metallurgist. 7 (2016) 36-37.

[20] G.V. Kortikov, S.L. Zevin, V.V. Grekov, Zinc performance at blast furnace and converter slurry agglomeration with the Kursk magnetic anomaly concentrates, Steel. 5 (2003) 2-6.