B2O3替代CaF2铁水预处理脱磷的热力学研究

特殊钢 ›› 2011, Vol. 32 ›› Issue (1): 13-15.

B₂O₃替代CaF₂铁水预处理脱磷的热力学研究

刘丽霞¹, 王世俊^2, 董元篪²

1 内蒙古科技大学材料与冶金学院，包头014010；
2 安徽工业大学冶金与资源学院,马鞍山243002

收稿日期:2010-08-30 出版日期:2011-02-01 发布日期:2022-09-26
作者简介:刘丽霞(1976-),女，硕士，讲师,1998年包头钢铁学院毕业，炼钢工艺研究。

Thermodynamic Study on Dephosphorization during Hot Metal Pretreatment with B₂O₃ to Replace CaF₂ in Slag

Liu Lixia¹, Wang Shijun² , Dong Yuanchi²

1 School of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010；
2 School of Metallurgy and Resource, Anhui University of Technology, Ma'anshan 243002

Received:2010-08-30 Published:2011-02-01 Online:2022-09-26
Supported by:
国家自然科学基金和上海宝钢集团公司联合资助项目(50674001)

摘要/Abstract

摘要： 通过MoSi管式高温炉在1450℃下研究了用0～8%B₂O₃替代40%CaO-52%Fe₂O₃铁水预处理渣中0～8%CaF₂的含量,对初始硅含量为0.61%,初始磷含量0.06%～0.09%的铁水脱磷效果。实验结果表明,B₂O₃替换CaF₂后,预处理脱磷渣氧化性增加,铁水的脱磷率大于80%,渣的磷容量略有降低,从9.35×10²¹变化到7.48×10²¹,可以满足预处理脱磷的要求。

Abstract: The dephosphorization effect of hot metal with initial 0. 61%Si and 0. 06% ~0.09%P by 0 ~8% B₂O₃ to replace 0 ~8% CaF₂ in 40% CaO-52% Fe₂O₃ metal pre-treating slag at 1 450℃ has been studied by MoSi tube high temperature furnace. Test results show that with B₂O₃ to replace CaF2, the oxidizing ability of pre-treating phosphorescing slag increases, the efficiency of dephosphorization of metal is more than 80% by substituting slag and the phosphor capacity of slag decreases slightly from original 9. 35 x 10²¹ to 7. 48 x 10²¹, it is available to meet the requirement of pre-treating dephosphorization.

刘丽霞, 王世俊, 董元篪. B₂O₃替代CaF₂铁水预处理脱磷的热力学研究[J]. 特殊钢, 2011, 32(1): 13-15.

Liu Lixia, Wang Shijun, Dong Yuanchi. Thermodynamic Study on Dephosphorization during Hot Metal Pretreatment with B₂O₃ to Replace CaF₂ in Slag[J]. Special Steel, 2011, 32(1): 13-15.

B₂O₃替代CaF₂铁水预处理脱磷的热力学研究

Thermodynamic Study on Dephosphorization during Hot Metal Pretreatment with B₂O₃ to Replace CaF₂ in Slag

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