F,K和Na对烧结矿组成与结构的影响  

Influence of F,K and Na on mineral composition and microstructure of the sinter

作　　者：李正[1] 罗果萍[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《内蒙古科技大学学报》2009年第1期1-5,共5页Journal of Inner Mongolia University of Science and Technology

基　　金：国家自然科学基金资助项目(50664006)

摘　　要：采用化学试剂配成不同F-K-Na含量的原料,高温烧结,制成试样,采用矿相和扫描电镜检测相结合的方法,分析F-K-Na对烧结矿组成和结构的影响.实验结果表明,在碱度一定(R=2)的情况下,F含量的增加,有利于铁酸钙分解生成赤铁矿和磁铁矿,同时对铁酸钙生成有抑制作用.在碱度一定(R=2)的情况下,F的质量分数控制在0.4%左右,K,Na含量的增加,赤铁矿含量明显增加,磁铁矿含量减少,有利于烧结试样中的磁铁矿氧化生成赤铁矿,同时抑制铁酸钙的生成,并对硅酸盐相的影响较大.The chemical reagent was mixed with different content of F-K-Na and sintered at high temperature to make the samples of the sinter.Mineral composition and microstructure of the samples were investigated by using the potical microscope and scanning electron microscope.The results showed that when the basicity was changeless(R=2) and the content of the fluorine was about 4.0%,hematite would increase and magnetite would decease with increasing the content of potassium and sodium,which was in favor of magnetite...

关 键 词：F-K-Na 烧结矿 组成与结构 

分 类 号：TF046.4[冶金工程—冶金物理化学]