Influence of desulfurization slag containing oxides of vanadium and titanium on semi-steel pre-desulfurization

The desulfurization and resulfurization of slag containing oxides of vanadium and titanium (CaO–SiO2–MgO–Al2O3–V2O3–TiO2–FeO) in the pretreatment of semi-steel desulfurization at 1623 K were investigated. Based on the ionic structure theory of slag, it could be concluded that V2O3 and TiO2 combined with (O2–) to form complex anions including ${\mathrm{VO}}_{3}^{3-} VO 3 3 - , {\text{Ti}}{\text{O}}_{4}^{{4}-}, TiO 4 4 - , etc., which...