Influence of K,Na,F on Calcium Ferrite Generation During Solid Phase Reaction of Sintering Process

摘要：

The effect of K, Na and F on calcium ferrite generation during the solid phase reaction of high basicity sintered ore sintering process was investigated using differential thermal analysis (DTA) and X-ray diffraction(XRD) techniques. It has been identified element F in Fe2O3-CaO-CaF2 system doesn’t have an imperfect influence on calcium ferrite generation during solid phase reaction of sintering process. SiO2 and CaF2 contend for CaO with Fe2O3 to generate cuspidine (3CaO·2SiO2·CaF2) and silicate(3CaO·2SiO2) when there exists SiO2, which is unfavorable for the formation of ferrite calcium. The silicates containing elements K and Na in the sintering raw material contend for CaO with Fe2O3 to generate CaO·SiO2 and 2CaO·SiO2, which has a bad influence up on the formation of ferrite calcium. The effect of F, K and Na on calcium ferrite generation during the solid phase reaction is revealed, and the results render a theoretical guideline for further treating the Baiyunebo ore with improved quality.

关键词： solid phase sintering reaction elemental F K and Na calcium ferrite generation

作者: WANG Yi-ci LUO Guo-ping HAO Zhi-zhong WU Hu-lin DUAN Xiang-guang

作者单位: College of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 0140 Iron Plant, Baotou Iron and Steel Company, Baotou 014010, Nei Monggol, China Technical Center, Baotou 014010, Nei Monggol, China

会议类型: 国际会议

会议名称: The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)

会议地点: 上海

会议语种:英文

页码: 246-250

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）