Abstract
Phosphorus and sulfur distribution between MgO-saturated BaO-Cr2O3-FetO (-BaF2) slags and liquid iron containing Cr ([%Cr]= 016) has been measured in the temperature range from 1550 to 1650°C. The refining limit of dephosphorization in steel containing Cr and hot metal was discussed by using the values for phosphate capacity CP (=(%P)/[aP·aO5/2]). Thermodynamic analysis indicates that the phosphorus partition ratio increases with carbon up to a critical value and decreases beyond that.
