Equilibrium S distribution between molten calcium aluminate and steel

Abstract

AbstractResults are given of the equilibrium measurements between liquid Fe containing Si and Al and calcium aluminosilicate melts (with 5%Si02) saturated with CaO at 1600°C and with CaAl4O7 at 1650°C. By incorporating the experimental results of this work with the available data on oxide activities and other slag-metal reactions, the equilibrium relations are derived for Si-Al redox slag-metal reaction. Comments are made on the ladle desulphurization of liquid steel by treatment with lime saturated aluminate slags.