1991 Volume 77 Issue 9 Pages 1419-1425
Measurements have been made to study the equilibrium between H2O /H2 gas mixture and FetO-MnO melt in Fe crucible at 1 450 and 1 500°C. The influence of slag composition on the activity of iron oxide and Fe3+/Fe2+ ratio has been clarified.
The activity of MnO in FetO-MnO slag in equilibrium with iron and the oxygen content in liquid iron equilibrated with this slag have been calculated using α-function of FetO. As the result, it has been confirmed that Fet-MnO slag shows approximately ideal behaviour. Furthermore, the dissolved oxygen content in liquid iron equilibrated with FetO-MnO slag has been evaluated based on the present results.