Solubility of MgO in CaO–SiO2–MnO Slags

The control of metallurgical slag properties and optimization of slag/metal reactions in the BOF process are of prime importance in the production of high grades of steels. In practice, the BOF slags are usually multi-component, and MgO containing dolomite is charged into a converter to minimize the lining wear, which leads to formation of the BOF slag saturated with MgO.1 It is widely known that MgO additions have great influences on the slag refining capacity and physical properties, consequently, on the ultimate steel productivity with high demand for high-performance usage.