Reduction of chromium oxtde from liquid slags

Juliana Gutiérrez-Paredes; Antonio Romero-Serrano; V. M. Arredondo-Torres; M. Hallen López

Reduction of chromium oxtde from liquid slags

Juliana Gutiérrez-Paredes, Antonio Romero-Serrano, V. M. Arredondo-Torres, M. Hallen López

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Resumen

Experimental and theoretical work was 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 1600°C. The slag system contained CaO, MgO, SiO ₂, CaF ₂ and Cr ₂O ₃ together with Fe-alloys (Fe-Si and Fe-Si-Mg). The CaF ₂ and MgO contents in the slags were 10 mass % each; Cr ₂O ₃ was 25%. The amount of the ferroalloys ranged from 12.5 to 50 g per 100 g of slag. The (CaO+MgO)/SiO ₂ 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)/SiO ₂, 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.

Idioma original	Inglés
Páginas	663-668
Número de páginas	6
Estado	Publicada - 2005
Publicado de forma externa	Sí
Evento	2005 TMS Annual Meeting - San Francisco, CA, Estados Unidos Duración: 13 feb. 2005 → 17 feb. 2005

Conferencia

Conferencia	2005 TMS Annual Meeting
País/Territorio	Estados Unidos
Ciudad	San Francisco, CA
Período	13/02/05 → 17/02/05

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title = "Reduction of chromium oxtde from liquid slags",

abstract = "Experimental and theoretical work was 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 1600°C. The slag system contained CaO, MgO, SiO 2, CaF 2 and Cr 2O 3 together with Fe-alloys (Fe-Si and Fe-Si-Mg). The CaF 2 and MgO contents in the slags were 10 mass % each; Cr 2O 3 was 25%. The amount of the ferroalloys ranged from 12.5 to 50 g per 100 g of slag. The (CaO+MgO)/SiO 2 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)/SiO 2, 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.",

keywords = "Chromium oxide, Recovery, Slag, Stainless steel",

author = "Juliana Guti{\'e}rrez-Paredes and Antonio Romero-Serrano and Arredondo-Torres, {V. M.} and L{\'o}pez, {M. Hallen}",

year = "2005",

language = "Ingl{\'e}s",

pages = "663--668",

note = "2005 TMS Annual Meeting ; Conference date: 13-02-2005 Through 17-02-2005",

}

TY - CONF

T1 - Reduction of chromium oxtde from liquid slags

AU - Gutiérrez-Paredes, Juliana

AU - Romero-Serrano, Antonio

AU - Arredondo-Torres, V. M.

AU - López, M. Hallen

PY - 2005

Y1 - 2005

N2 - Experimental and theoretical work was 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 1600°C. The slag system contained CaO, MgO, SiO 2, CaF 2 and Cr 2O 3 together with Fe-alloys (Fe-Si and Fe-Si-Mg). The CaF 2 and MgO contents in the slags were 10 mass % each; Cr 2O 3 was 25%. The amount of the ferroalloys ranged from 12.5 to 50 g per 100 g of slag. The (CaO+MgO)/SiO 2 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)/SiO 2, 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 was 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 1600°C. The slag system contained CaO, MgO, SiO 2, CaF 2 and Cr 2O 3 together with Fe-alloys (Fe-Si and Fe-Si-Mg). The CaF 2 and MgO contents in the slags were 10 mass % each; Cr 2O 3 was 25%. The amount of the ferroalloys ranged from 12.5 to 50 g per 100 g of slag. The (CaO+MgO)/SiO 2 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)/SiO 2, 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 oxide

KW - Recovery

KW - Slag

KW - Stainless steel

UR - http://www.scopus.com/inward/record.url?scp=23244461231&partnerID=8YFLogxK

M3 - Artículo

SP - 663

EP - 668

T2 - 2005 TMS Annual Meeting

Y2 - 13 February 2005 through 17 February 2005

ER -

Reduction of chromium oxtde from liquid slags

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