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用最大气泡法和秤重法分别地测定了液态和固态的FeO-Fe_2O_3-P_2O_5和CaO-P_2O_5渣系的密度。密度随系统中FeO+Fe_2O_3或CaO浓度的增加而升高。把实验结果结合本文作者以前研究过的FeO-Fe_2O_3-CaO系的密度值并外插到纯FeO处,得FeO在1400℃时密度应为4.7±0.15克/厘米~3,在25℃为5.85克/厘米~3。把4.7克/厘米~3作为FeO在1400℃时的密度,校正了本文作者以前导出的一个计算工业炉渣密度的半经验公式。此外,根据研究结果,还讨论了分层渣系FeO-Fe_2O_3-CaO-P_2O_5的密度。
The density of liquid and solid FeO-Fe 2 O 3 -P 2 O 5 and CaO-P 2 O 5 slag systems were determined by the maximum bubble method and the weighing method, respectively. The density increases as the concentration of FeO + Fe_2O_3 or CaO in the system increases. Combining the experimental results with the density values of the FeO-Fe 2 O 3 -CaO system previously studied by the author and extrapolating to pure FeO, the FeO should have a density of 4.7 ± 0.15 g / cm 3 at 1400 ° C and 5.85 at 25 ° C G / cm ~ 3. Using 4.7 g / cm 3 as the density of FeO at 1400 ° C, we calibrated a semi-empirical formula previously calculated by the author for the calculation of industrial slag densities. In addition, according to the research results, the density of layered slag system FeO-Fe_2O_3-CaO-P_2O_5 was also discussed.