Modeling of the Kinetics of Nickel Reduction
from a Multicomponent Oxide Melt
with a Gaseous Reducing Agent

A. S. Vusikhis, D. Z. Kudinov, and L. I. Leont’ev

Institute of Metallurgy, Ural Division, Russian Academy of Sciences, Yekaterinburg, Russia

e-mail: vas58@mail.ru

Received November 13, 2007

Abstract—A model was suggested that allows the kinetics of bubbling of various reducing gases through an
oxide melt to be described by thermodynamic equilibrium calculations without the use of experimental data.
An algorithm for calculations was developed. The model is tested for the NiO–FeO–Al₂O₃–SiO₂–CaO–Mg–
CO–CO₂ system. A comparative analysis of the calculation results and experimental data showed that the sug-
gested technique could be used in a qualitative analysis of interactions between multicomponent oxide melts
and gaseous reducing agents of various compositions. Calculations describing the kinetics of reduction of
nickel oxide with hydrogen in the NiO–CaO–B₂O₃ system over the temperature range 1473–1973 K were per-
formed.

DOI: 10.1134/S003602440811006X

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