摘要
基于分子相互作用体积模型(MIVM)及其伪多元法,预测了含钛高炉渣系Al2O3-CaOMgO-SiO2-TiO2中TiO2的活度,并与相应的实验值进行比较.结果显示:MIVM预测值与实验值符合较好,均处于同一数量级,所得规律与实验规律相一致.这表明该模型预测含钛高炉渣系组元的热力学性质具有较好的可靠性.MIVM的一个重要优点在于:它仅通过拟合子二元系活度数据或者直接由子二元系无限稀活度系数,就能够预测多元氧化物熔体的热力学性质.
The activity of TiO2 in the Al2O3-CaO-MgO-SiO2-TiO2 Titania-bearing BF slag is predicted based on the molecular interaction volume model（ MIVM） and the pseudo-multicomponent approach. The predicted values are in reasonable agreement with experimental data and the changing patterns about activity of TiO2 in the quintuple system are investigated which are consistent with the experimental ones. The result proves the reliability of MIVM in predicting the component activities of Titania-bearing BF slag. A significant advantage of the model lies in its ability to predict thermodynamic properties of multiple oxide melt by using only the experimental data of component activities or infinite activity coefficients in their sub-binary systems.
出处
《昆明理工大学学报（自然科学版）》
CAS
2015年第5期1-9,共9页
Journal of Kunming University of Science and Technology(Natural Science)
基金
国家自然科学基金项目(51464022
51090381)
关键词
含钛高炉渣
二氧化钛
活度
预测
分子相互作用体积模型
Titania-bearing BF slag
TiO2
activity
prediction
molecular interaction volume model
