At low basicity and low temperature, the dephosphorization behavior and phosphorus distribution ratio (L_P) between slag and molten steel in the double slag and remaining slag process were studied with a 180 t basic oxygen furnace industrial experiment. The dephosphorization slags with different basicities were quantitatively analyzed. At the lower basicity range of 0.9–2.59, both L_P and dephosphorization ratio were increased as the basicity of dephosphorization slag increased. Dephosphorization slag consisted of dark gray P-rich, light gray liquid slag, and white Fe-rich phases. With increasing basicity, not only did the morphologies of different phases in the dephosphorization slag change greatly, but the area fractions and P₂O₅ content of the P-rich phase also increased. The transfer route of P during dephosphorization can be deduced as hot metal → liquid slag phase + Fe-rich phase → P-rich phase.

在低碱度和低温下，通过180 t碱性氧气炉工业实验研究了双渣和余渣过程中渣与钢水之间的脱磷行为和磷分布比（L _P）。对不同碱度的脱磷渣进行了定量分析。在0.9-2.59较低碱度范围内，既大号_P和脱磷率分别提高作为脱磷炉渣的碱度增加。脱磷炉渣由深灰色的富P渣，浅灰色的液态炉渣和富白色的Fe相组成。随着碱度的提高，不仅脱磷渣中不同相的形态发生了很大变化，而且面积分数和P ₂ O富P相的₅含量也增加了。磷在脱磷过程中的转移途径可以推导为铁水→液态渣相+富铁相→富磷相。