TY - JOUR
T1 - Characterization of black slags obtained during smelting in the electric arc furnace from SIDERPERU following reduction
AU - Cabrera-Tinoco, H. A.
AU - Valencia-Bedregal, R. A.
AU - Borja-Castro, L. E.
AU - Valerio-Cuadros, M. I.
AU - Dominguez, A. G.Bustamante
AU - Zhao, Xiaoli
AU - Zhang, Youyun
AU - Zheng, Chengmu
AU - Moreno, N. O.
AU - Zhang, Deliang
AU - Barnes, C. H.W.
AU - Valladares, L. De Los Santos
N1 - Publisher Copyright:
© 2022, The Author(s).
PY - 2022/12
Y1 - 2022/12
N2 - 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.
AB - 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.
KW - Black slag
KW - Mӧssbauer spectroscopy, HRB335 steel
KW - carbothermal reduction
KW - electric arc furnace
KW - iron oxides
UR - http://www.scopus.com/inward/record.url?scp=85122997041&partnerID=8YFLogxK
U2 - 10.1007/s10751-022-01791-5
DO - 10.1007/s10751-022-01791-5
M3 - Artículo
AN - SCOPUS:85122997041
SN - 0304-3843
VL - 243
JO - Hyperfine Interactions
JF - Hyperfine Interactions
IS - 1
M1 - 8
ER -