Metallurgy, Vol. 60 No. 3-4, 2021.
Preliminary communication
Modeling method of phase equilibrium in metal-slag system
V. Tolokonnikova
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
S. Baisanov
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
G. Narikbayeva
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
I. Korsukova
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
Ye. Mukhambetgaliyev
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
Abstract
This paper demonstrates a new modeling method of the complex heterogeneous processes between a metal and slag based on a pattern of formation of the crystallization fields of phases. The theoretical justification was provided for the using of the osmotic coefficients of Bjerrum-Guggenheim with the reduction reactions of elements from the liquid oxide melts into metal. As an example, the equilibrium procedure of a carbon-saturated Fe-Si melt with liquid CaO-SiO2-Al2O3 slag was presented and a mathematical model of the complex phase equilibrium in a metal-slag system was provided.
Keywords
heterogeneous phase equilibrium; metal-slag system; Fe-Si/CaO-SiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub>; crystallization surface of carbon; equilibrium constant
Hrčak ID:
256031
URI
Publication date:
1.7.2021.
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