Abstract An innovative rare earth oxide-containing slag for hot metal dephosphorization was proposed, and the factors influencing the efficiency during the dephosphorization of hot metal using rare earth oxide-containing slags were also studied. An increase in the temperature up to 1,550°C is beneficial to the dephosphorization process, and the maximum degree of dephosphorization for slags containing 6 wt% rare earth oxides is 44.49%; further temperature increases would deteriorate the efficiency, and the degree of dephosphorization decreases to 37.38% at 1,600°C. An increase in the basicity of slags up to 3.0, and the rare earth oxide content up to 6 wt%, improves the dephosphorization efficiency; further increase in the basicity and rare earth oxide content, the efficiency has almost no change. It was also found that an increase in the quantity of slags is beneficial to the dephosphorization reaction.

中文翻译：

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含稀土氧化物炉渣对铁水脱磷

摘要 提出了一种用于铁水脱磷的新型含稀土氧化物渣，并对影响含稀土氧化物渣铁水脱磷效率的因素进行了研究。升温至1550℃有利于脱磷过程，含6wt%稀土氧化物的炉渣最大脱磷度为44.49%；进一步升高温度会降低效率，脱磷度在 1600°C 下降到 37.38%。炉渣碱度提高至3.0，稀土氧化物含量提高至6wt%，提高脱磷效率；进一步增加碱度和稀土氧化物含量，效率几乎没有变化。