摘要
应用固体电解质定氧探头测定了碱性复杂炉渣的 FexO活度,并对结果进行了误差分析。炉渣中的FexO活度对拉乌尔定律呈正偏差,且偏差的程度随CaF_2、FexO含量及碱度的增加而减小,随P_2O_5 含量的增加而增大。当炉渣的碱度大于2.1时,FexO 活度随温度的上升而减小。根据实验结果,绘制了1450℃时FexO-(SiO_2+P_2O_5+Al_2O_3)-(CaO+MgO+MnO+CaF_2)准三元系的等FexO活度图。
The oxygen probe with solid electrolyte was used for thedetermination of the activities of FexO in basic complex slags, and the error analysis has been done. The activities of FexO show positive deviation from Raoult's law. It is found that the deviation decreases with increasing CaF2·FexO content and the basity of slags, and increases with increasing P2O5 content. Activity of FexO decreases with increasing temperature when the basity (CaO/SiO2) value is greater than 2.1, Iso-activity curves of FexO are drawn on the pseudo-ternary diagram FexO - (SiO 2 + P2O5 +A12O3 )-(CaO+ MgO+MnO+CaF2).
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1989年第2期117-123,共7页
Journal of University of Science and Technology Beijing
关键词
碱性
炉渣
FexO
活度
固体电解质
solid electrolyte, oxygen probe, activity of FexO, complex basic slag
