Thermodynamic model calculations in multicomponent liquid silicate systems

被引：17

作者：

Björkvall, J ^{[1
]}

Du, SC ^{[1
]}

Seetharaman, S ^{[1
]}

机构：

[1] Royal Inst Technol, Dept Met, S-10044 Stockholm, Sweden

来源：

IRONMAKING & STEELMAKING | 2001年 / 28卷 / 03期

关键词：

D O I：

10.1179/030192301678118

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A thermodynamic model developed earlier in the present laboratory for oxidic melts was applied to some multicomponent systems, namely CaO-FeO-MgO-SiO2, Al2O3-CaO-MgO-SiO2, Al2O3-FeO-MnO-SiO2, and Al2O3-CaO-FeO-MgO-MnO-SiO2. Model calculations were carried out using only the parameters corresponding to the binary systems, which, in turn, were based on the available thermodynamic information for these systems. The predicted thermodynamic activities of the component oxides in higher order systems were compared with the experimental data published in the literature. In general, the agreement between the model predictions and the experimental values was found to be satisfactory within the limits of experimental uncertainties and limitations of the model calculations. Examples of model predictions for some typical slag compositions, relevant to the Swedish steel industry and used in the blast furnace, electric arc furnace, and ladle furnace are also presented.

引用

页码：250 / 257

页数：8