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矿冶:2015,24(2):51-54
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基于 CaO-SiO2-FeO-Na2O-Al2O3渣系的中高磷铁水脱磷实验研究
轩心宇,施哲,漆鑫,蔡加武
(昆明理工大学冶金与能源工程学院,昆明理工大学冶金与能源工程学院,昆明理工大学冶金与能源工程学院,昆明理工大学冶金与能源工程学院)
Study of Dephosphorization of High-Phosphorus Hot Metal in CaO-SiO2-FeO-Na2O-Al2O3 Slag System
Xuan Xinyu,Shi Zhe,Qi Xin and Cai Jiawu
(Faculty of Metallurgical and Energy Engineering of Kunming University of Science and Technology,Faculty of Metallurgical and Energy Engineering of Kunming University of Science and Technology,Faculty of Metallurgical and Energy Engineering of Kunming University of Science and Technology,Faculty of Metallurgical and Energy Engineering of Kunming University of Science and Technology)
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投稿时间:2013-10-15    修订日期:2013-10-22
中文摘要: 结合现有铁矿含P高的实际情况,采用CaO-SiO2-FeO -Na2O-Al2O3渣系对中高P铁水进行脱P的实验研究。研究结果表明:脱磷渣系的碱度值ω(CaO)/ω(SiO2)为4时,在相同实验条件下,分别用Al2O3、Na2O、和Al2O3与Na2O的混合物代替常规的CaF2时均可达到更高的脱磷效果;造渣剂分两次加入的脱P效果比一次性加入的更好。当渣系中使用4%(Al2O3) 2%(Na2O)的复合熔剂,分两次加入时,铁水的终点脱磷率可达到96%。
Abstract:According to the actual situation of the high-phosphorus iron ore, the present paper studies the dephosphorization of high-phosphorus hot metal by using CaO-SiO2-FeO-Na2O-Al2O3 slag system. The results show that,under the same experimental conditions, when basicity of ω(CaO)/ω(SiO2) was 4, the effects of dephosphorization using Al2O3、Na2O and the mixture of Al2O3 and Na2O were better than that of using CaF2.The effects of dephosphorization with twice-joining slags were better than the effects of once-joining. When the composite flux with4% (Al2O3) and 2% (Na2O) was used, and was added twice, the dephosphorization rate reached 96%.
文章编号:20131015001     中图分类号:    文献标志码:
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轩心宇,施哲,漆鑫,蔡加武.基于 CaO-SiO2-FeO-Na2O-Al2O3渣系的中高磷铁水脱磷实验研究[J].矿冶,2015,24(2):51~54.

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