烧结气化脱磷过程中磷的转化及物相分析

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烧结气化脱磷过程中磷的转化及物相分析

张伟, 王辉, 邢宏伟, 田铁磊, 吴礼忠, 刘帆

文章导航 > 钢铁钒钛 > 2015 > 36(3): 78-82

张伟, 王辉, 邢宏伟, 田铁磊, 吴礼忠, 刘帆. 烧结气化脱磷过程中磷的转化及物相分析[J]. 钢铁钒钛, 2015, 36(3): 78-82. doi: 10.7513/j.issn.1004-7638.2015.03.016

引用本文:

张伟, 王辉, 邢宏伟, 田铁磊, 吴礼忠, 刘帆. 烧结气化脱磷过程中磷的转化及物相分析[J]. 钢铁钒钛, 2015, 36(3): 78-82. doi: 10.7513/j.issn.1004-7638.2015.03.016

Zhang Wei, Wang Hui, Xing Hongwei, Tian Tielei, Wu Lizhong, Liu Fan. Phase Analysis and Phosphorus Transformation in Sintering Gasification Dephosphorization Process[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 78-82. doi: 10.7513/j.issn.1004-7638.2015.03.016

Citation:

Zhang Wei, Wang Hui, Xing Hongwei, Tian Tielei, Wu Lizhong, Liu Fan. Phase Analysis and Phosphorus Transformation in Sintering Gasification Dephosphorization Process[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 78-82. doi: 10.7513/j.issn.1004-7638.2015.03.016

张伟, 王辉, 邢宏伟, 田铁磊, 吴礼忠, 刘帆. 烧结气化脱磷过程中磷的转化及物相分析[J]. 钢铁钒钛, 2015, 36(3): 78-82. doi: 10.7513/j.issn.1004-7638.2015.03.016

引用本文:

张伟, 王辉, 邢宏伟, 田铁磊, 吴礼忠, 刘帆. 烧结气化脱磷过程中磷的转化及物相分析[J]. 钢铁钒钛, 2015, 36(3): 78-82. doi: 10.7513/j.issn.1004-7638.2015.03.016

Zhang Wei, Wang Hui, Xing Hongwei, Tian Tielei, Wu Lizhong, Liu Fan. Phase Analysis and Phosphorus Transformation in Sintering Gasification Dephosphorization Process[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 78-82. doi: 10.7513/j.issn.1004-7638.2015.03.016

Citation:

Zhang Wei, Wang Hui, Xing Hongwei, Tian Tielei, Wu Lizhong, Liu Fan. Phase Analysis and Phosphorus Transformation in Sintering Gasification Dephosphorization Process[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 78-82. doi: 10.7513/j.issn.1004-7638.2015.03.016

烧结气化脱磷过程中磷的转化及物相分析

doi: 10.7513/j.issn.1004-7638.2015.03.016

河北联合大学冶金与能源学院, 河北省现代冶金技术重点实验室, 河北唐山 063009

基金项目:

国家自然科学基金资助(51274081)。

作者简介:
张伟(1977-),女,硕士,实验师,主要从事冶金节能与资源优化研究。

中图分类号: TF046.4
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- 文章访问数: 10
- HTML全文浏览量: 3
- PDF下载量: 1
- 被引次数: 0
出版历程
- 收稿日期: 2014-09-05

Phase Analysis and Phosphorus Transformation in Sintering Gasification Dephosphorization Process

College of Metallurgy and Energy of Hebei United University, Hebei Key Laboratory of Modern Metallury Technology, Tangshan 063009, Hebei, China

摘要:
为了探索烧结过程中磷的转化机理,在热力学计算基础上,采用微型烧结试验,对焙烧产物进行成分检测和XRD分析。结果表明,在配碳4%、SiO₂1.41%、CaCl₂1.36%条件下,脱磷率最高达到20%;添加SiO₂时,Ca₅(PO₄)₃F先脱氟转化为Ca₃(PO₄)₂,进而发生脱磷反应;添加CaCl₂后,焙烧产物中Ca₅(PO₄)₃F衍射峰减弱,CaSO₄衍射峰强度明显增强,同时出现CaF₂相和CaSiO₃相,结合反应式,证明气化脱磷反应发生,脱磷产物为PCl₃气体。
- 烧结 /
- 气化脱磷 /
- 转化机理 /
- CaCl₂ /
- 脱磷产物
Abstract:
In order to explore the transformation mechanism of phosphorus during sintering process,minisintering experiment was carried out based on the thermodynamic calculation,and the component and phase of calcined product were analyzed. The results show that the dephosphorization ratio reached up to 20% in the conditions of 4% carbon,1.41% SiO₂ and 1.36% CaCl₂; When adding SiO₂,Ca₅(PO₄)₃F is transformed into Ca₃(PO₄)₂ through defluorination reaction,and then dephosphorization reaction takes place. After adding CaCl₂,the diffraction peak of Ca₅(PO₄)₃F decreases,while diffraction peak of CaSO₄ enhance obviously,at the same time both CaF₂ phase and CaSiO₄ phase appeare,which indicating the occurrence of gasification dephosphorization reaction with PCl₃ as dephosphorization product.
- sintering /
- gasification dephosphorization /
- transformation mechanism /
- CaCl₂ /
- dephosphorization product

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