Phase Equilibria of Two-liquid CaO-MgO-FetO-P2O5 Slag Saturated with (Mg, Fe)O

Teppei Tamura, Tetsuya Nagasaka, Mitsutaka Hino
2004 ISIJ International  
Phase equilibria of two-liquid CaO-MgO-Fe t O-P 2 O 5 slag saturated with (Mg, Fe)O solid solution and the distribution ratio of phosphorus between the slag and liquid iron were measured at steelmaking temperatures by chemical equilibration. It is known that this slag system has wide liquid miscibility gap at steelmaking temperature and this two-liquid phase slag has many advantages, such as high activities of both Fe t O and CaO and high amount of phosphoric oxide. It was made clear that the
more » ... osphorus distribution ratio between the slag system and molten iron was higher than that of the CaO sat. -Fe t O-P 2 O 5 system and the twoliquid slag phase was very useful for dephosphorization of molten steel and reduction of slag volume.
doi:10.2355/isijinternational.44.476 fatcat:v6gpnezbn5f6hjzc2ixqdttigu