Abstract：Lime consumption, quantity of slag, oxygen consumption and Fe loss are gained by material balance calculation of hot metal dephosphorizing pretreatment and direct steelmaking process in converter. The result shows that lime consumption, quantity of slag, and Fe loss exist the best point with the increase of semisteel [P] and decline along with the increase of deslagging quantity. The oxygen consumption declines along with the increase of semisteel [P]. the best demarcation point for medium phosphoric iron melt is that dephosphorization rate is between 87% and 91%.
王学斌，邹宗树. 转炉预直炼法最佳分界点的理论研究[J]. 中国冶金, 2007, 17(11): 10-10.
WANG Xuebin，ZOU ZongShu. Theoretics Study on Demarcation Point of Dephosphorization Pretreatment and Direct SteelMaking Process in Converter. China Metallurgy, 2007, 17(11): 10-10.
