在实验室电阻炉的条件下,对复吹转炉在吹炼含中高磷铁水时冶炼终点最佳炉渣成分进行了研究.研究结果表明,炉渣的氧化铁质量分数在15%左右,炉渣碱度在4.4,其他成分具有一定配比时,炉渣的脱磷能力较强.讨论了光学碱度对中高磷铁水脱磷的影响,回归出如下的1600℃终渣磷分配比的计算公式:lgLp=0.52A-0.0027w(FeO)+0.49.式中,Lp为磷在渣与金属中的分配比;Λ为多元渣系的平均光学碱度;w(FeO)为渣中FeO的质量分数.
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