铁水预处理脱磷渣低氟化研究

特殊钢 ›› 2009, Vol. 30 ›› Issue (1): 54-57.

铁水预处理脱磷渣低氟化研究

彭军¹, 王世俊², 刘丽霞², 董元篪²

1北京科技大学冶金与生态工程学院，北京100083；
2安徽工业大学冶金与资源学院,马鞍山243002

收稿日期:2008-07-11 出版日期:2009-02-01 发布日期:2022-11-30
作者简介:彭军(1975-),男，在读博士研究生，铁水预处理与二次精炼。

A Study on Dephosphorization of Hot Metal Pretreatment by Low Fluoride Slag

Peng Jun¹ , Wang Shijur¹, Liu Lixia², Dong Yuanchi²

1 School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083;
2 School of Metallurgy & Resource, Anhui University of Technology, Maanshan 243002

Received:2008-07-11 Published:2009-02-01 Online:2022-11-30

摘要/Abstract

摘要： 为了降低预处理脱磷渣(%:40CaO、52Fe₂O₃、6～8CaF₂)中CaF2含量,分别用2%～8%Al₂O₃、B₂O₃、Li₂O和白云石替代预处理脱磷渣中CaF2,研究替代后脱磷效果。在1450℃的实验结果表明,Al₂O₃、B₂O₃、Li₂O和白云石都能替代CaF₂,形成低氟或无氟预处理渣。Al₂O₃和Li₂O替代CaF₂后预处理脱磷率提高,而B₂O₃和白云石替代前后预处理效果相当。

关键词: 低氟渣, 铁水预处理, 脱磷

Abstract: In order to decrease the CaF2 content in dephosphorization slag (40CaO, 52Fe₂O₃ , 6 - 8CaF₂ ) for hot metal pretreatment, the CaF₂ in pretreatment dephosphorization slag was replaced respectively by 2% 〜8% Al₂O₃, B₂O₃, Li₂O and dolomite to study dephosphorization effect after replace. Test results at 1 450 °C showed that Al₂O₃, B₂O₃ , Li₂O and dolomite might be used instead of CaF₂ to form low fluoride or free fluoride slag for hot metal pretreatment. With replacing CaF₂, by Al₂O₃ or Li₂O, the dephosphorization effect of pretreatment of slag improved and with replacing CaF₂ by B₂O₃ or dolomite the dephosphorization effect of slag was about equal to that of fluoride slag.

Key words: Low Fluoride Slag, Hot Metal Pretreatment, Dephosphorization

彭军, 王世俊, 刘丽霞, 董元篪. 铁水预处理脱磷渣低氟化研究[J]. 特殊钢, 2009, 30(1): 54-57.

Peng Jun , Wang Shijur , Liu Lixia, Dong Yuanchi. A Study on Dephosphorization of Hot Metal Pretreatment by Low Fluoride Slag[J]. Special Steel, 2009, 30(1): 54-57.