Anais do Congresso Anual da ABM


ISSN 2594-5327

68º Congresso da ABM vol. 68, num.68 (2013)


Título

THERMODYNAMIC EVALUATION OF THE SLAG SYSTEM CaO-MgO-SiO2-Al2O3

THERMODYNAMIC EVALUATION OF THE SLAG SYSTEM CaO-MgO-SiO2-Al2O3

DOI

10.5151/2594-5327-23108

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Resumo

Slag System CaO-MgO-SiO2-Al2O3 - although plays an important role during the secondary refining of steel, such as adjustment of the sulfur level, capture of nonmetallic inclusions and refractory protection - still has regions with little data or uncertain data in terms of phases present at equilibrium and isothermal profile heights. It is also important to know the composition and proportion of liquid and solids formed, considering, for example, the basicity (%CaO/%SiO2) and the MgO content. With respect to physical properties the slag viscosity stands as the most important. It influences both the reactions between metal / slag as well as slag / refractory interaction. This work, done with the help of computational thermodynamics, is continuing to study the phases present in certain compositions of the system CaO-MgO-SiO2-Al2O3, and to evaluate the viscosity values of this system, calculated via computational thermodynamics, with those of literature.

 

Slag System CaO-MgO-SiO2-Al2O3 - although plays an important role during the secondary refining of steel, such as adjustment of the sulfur level, capture of nonmetallic inclusions and refractory protection - still has regions with little data or uncertain data in terms of phases present at equilibrium and isothermal profile heights. It is also important to know the composition and proportion of liquid and solids formed, considering, for example, the basicity (%CaO/%SiO2) and the MgO content. With respect to physical properties the slag viscosity stands as the most important. It influences both the reactions between metal / slag as well as slag / refractory interaction. This work, done with the help of computational thermodynamics, is continuing to study the phases present in certain compositions of the system CaO-MgO-SiO2-Al2O3, and to evaluate the viscosity values of this system, calculated via computational thermodynamics, with those of literature.

Palavras-chave

Slag; CMSA system; Computational thermodynamics.

Slag; CMSA system; Computational thermodynamics.

Como citar

Bielefeldt, Wagner Viana; Vilela, Antônio Cezar Faria; Cezar, HeckNestor. THERMODYNAMIC EVALUATION OF THE SLAG SYSTEM CaO-MgO-SiO2-Al2O3 , p. 1630-1641. In: 68º Congresso da ABM, São Paulo, 2013.
ISSN: 2594-5327 , DOI 10.5151/2594-5327-23108