The Equilibrium Between SiO2 and Al2O3 in Slag, and Si and Al in Steel

The ratio SiO2/Si for lime saturated slags in the CaO-Al2O3-SiO2 system in equilibrium with steel, as a function of aluminum content of steel. Results of Bannenberg et al. [1992Ban] for post degassing ladle stirring compared against calculated result from TCS Metal Oxide Solutions Database (TCOX).

The ratio SiO2/Si for lime saturated slags in the CaO-Al2O3-SiO2 system in equilibrium with steel as a function of aluminum content of steel.

Figure 1: The ratio SiO2/Si for lime saturated slags in the CaO-Al2O3-SiO2 system in equilibrium with steel as a function of aluminum content of steel.

Reference

[1992Ban] N. Bannenberg, B. Bergmann, H. Gaye, Combined decrease of sulphur, nitrogen, hydrogen and total oxygen in only one secondary steelmaking operation. Steel Res. 63, 431–437 (1992).