TY - JOUR
T1 - Reduction of chromium oxide from slags
AU - Gutiérrez-Paredes, J.
AU - Romero-Serrano, A.
AU - Hernández, M. A.
AU - Chávez-Alcalá, F.
AU - Zeifert, B.
PY - 2005
Y1 - 2005
N2 - Experimental and theoretical work were performed to estimate the effect of slag basicity and amount of reducing agents on the reduction of chromium oxide from the slag which interacted with molten steel at 1,600°C. The slag system contained CaO, MgO, SiO2, CaF2 and Cr2O 3 together with Fe-alloys (Fe-Si and Fe-Si-Mg). The CaF2 and MgO contents in the slags were 10 mass % each; Cr2O3 was 25%. The amount of the ferroalloys ranged from 12.5 to 50 g per 100 g of slag. The (CaO+MgO)/SiO2 ratio was held at 1 and 2. The Cr yield was determined using both Fe-alloys as reducing agents. Some estimations were made to determine the theoretical effect of temperature, slag basicity, (CaO+MgO)/SiO2, and amount of reducing agents in the slag on the chromium recovery. The FACT (Facility for the Analysis of Chemical Thermodynamics) computational package is used to determine the equilibrium between the slag and molten steel.
AB - Experimental and theoretical work were performed to estimate the effect of slag basicity and amount of reducing agents on the reduction of chromium oxide from the slag which interacted with molten steel at 1,600°C. The slag system contained CaO, MgO, SiO2, CaF2 and Cr2O 3 together with Fe-alloys (Fe-Si and Fe-Si-Mg). The CaF2 and MgO contents in the slags were 10 mass % each; Cr2O3 was 25%. The amount of the ferroalloys ranged from 12.5 to 50 g per 100 g of slag. The (CaO+MgO)/SiO2 ratio was held at 1 and 2. The Cr yield was determined using both Fe-alloys as reducing agents. Some estimations were made to determine the theoretical effect of temperature, slag basicity, (CaO+MgO)/SiO2, and amount of reducing agents in the slag on the chromium recovery. The FACT (Facility for the Analysis of Chemical Thermodynamics) computational package is used to determine the equilibrium between the slag and molten steel.
KW - Chromium
KW - Reduction
KW - Slags
KW - Stainless steel
UR - http://www.scopus.com/inward/record.url?scp=33644645655&partnerID=8YFLogxK
U2 - 10.3989/revmetalm.2005.v41.iextra.1073
DO - 10.3989/revmetalm.2005.v41.iextra.1073
M3 - Artículo
AN - SCOPUS:33644645655
SN - 0034-8570
VL - SPEC. VOL.
SP - 443
EP - 446
JO - Revista de Metalurgia (Madrid)
JF - Revista de Metalurgia (Madrid)
ER -