Characterization of black slags obtained during smelting in the electric arc furnace from SIDERPERU following reduction
Authors
Cabrera-Tinoco, HA
Valencia-Bedregal, RA
Borja-Castro, LE
Valerio-Cuadros, MI
Dominguez, AGB
Zhao, X
Zhang, Y
Zheng, C
Moreno, NO
Zhang, D
Barnes, CHW
Publication Date
2022Journal Title
Hyperfine Interactions
ISSN
0304-3843
Publisher
Springer Science and Business Media LLC
Volume
243
Issue
1
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Cabrera-Tinoco, H., Valencia-Bedregal, R., Borja-Castro, L., Valerio-Cuadros, M., Dominguez, A., Zhao, X., Zhang, Y., et al. (2022). Characterization of black slags obtained during smelting in the electric arc furnace from SIDERPERU following reduction. Hyperfine Interactions, 243 (1) https://doi.org/10.1007/s10751-022-01791-5
Abstract
<jats:title>Abstract</jats:title><jats:p>The primary process in an electrical arc furnace (EAF) during industrial steelmaking results in tons of black slags which cause pollution to the environment. In this work, the iron oxides of black slags generated in the EAF from the SIDERPERU plant, Peru was reduced via the carbothermal reaction. The reduction of the black slag to α-Fe is demonstrated by X-ray diffraction, Mӧssbauer spectroscopy and magnetometry. However, phases with calcium and silicon persist in the sample after the carbothermal process. The thermodynamic calculations of the most probable reactions sequence were performed to understand the reduction process. The magnetometry measurements confirm the presence of ferromagnetic domains, supporting the success of the reduction of the black slag to α-Fe. The reduced black slags were recycled into a HRB335 steel rod by consolidation and extrusion processes and inspected by X-ray fluorescence.</jats:p>
Keywords
Article, Proceedings of the International Conference on the Applications of the Mössbauer Effect (ICAME 2021), 5-10 September 2021, Brasov, Romania, Black slag, iron oxides, electric arc furnace, carbothermal reduction, Mӧssbauer spectroscopy, HRB335 steel
Identifiers
s10751-022-01791-5, 1791
External DOI: https://doi.org/10.1007/s10751-022-01791-5
This record's URL: https://www.repository.cam.ac.uk/handle/1810/333141
Rights
Licence:
http://creativecommons.org/licenses/by/4.0/
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