EFFECT OF SLAG COMPOSITION ON THE DESULFURIZATION AND DEPHOSPHORIZATION OF MOLTEN STEEL.

Abstract

Large rate constants for desulfurization and dephosphorization were obtained by using slags which contained Na//2O, B//2O//3, Na//2B//4O//7 or K//2O in CaO-CaF//2 base and had great reaction ability as well as fluidity. A simultaneous reaction became possible for steels containing some oxygen. Refractries should be selected according to the slag composition.