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-SiO₂-Al₂O₃; crystallization surface of carbon; equilibrium constant

Hrčak ID:

256031

URI

https://hrcak.srce.hr/256031

Publication date:

1.7.2021.

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