Research on the possibility of dephosphorization and desulfurization simultaneously at same location in the secondary refining process

According to the reaction time and location of hot metal dephosphorization and desulfurization the hot metal pretreatment technologies using one single flux for dephosphorization and desulfurization simultaneously in the process of hot metal pretreatment or in the secondary refining can be basically divided into 3 categories,namely: dephosphorization and desulfurization at the same location and at the same time period;dephosphorization and desulfurization at the same time period but not at the same location;dephosphorization and desulfurization at the same location but not at the same time period.For the purpose of studies on the possibility of dephosphorization and desulfurization of hot metal at the same location but not at the same time period firstly proper theoretical studies and discussion are carried out and then further exploration and experiments conducted in LF.Results of the studies show that dephosphorization and desulfurization of the hot metal at the same location but not at the same time period can be possibly realized by using BaO flux series in the process of the secondary refining.