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首页> 外文期刊>Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science >Modeling of Viscosities of the Partly Crystallized Slags in the Al_2O_3-CaO-'FeO'-SiO_2 System
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Modeling of Viscosities of the Partly Crystallized Slags in the Al_2O_3-CaO-'FeO'-SiO_2 System

机译:Al_2O_3-CaO-'FeO'-SiO_2系统中部分结晶矿渣的粘度模型

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摘要

A viscosity model of the partly crystallized slag in the Al_2O_3-CaO-'FeO'-SiO_2 system has been developed in conjunction with the thermodynamic computer package F~*A~*C~*T. Proportions of solids crystallized out of the liquid phase and compositions of the remaining liquid phase predicted by F~*A~*C~*T are used in the viscosity model. Various heterogeneous viscosity models have been tested using large experimental dataset in the Al_2O_3-CaO-'FeO'-SiO_2 system in reducing conditions close to the equilibrium with metallic iron. The Roscoe equation with new empirical parameters was found to provide reasonable agreement with experimental data. Examples of model application to industrial nonferrous smelting slag systems are presented. This model can also be applied to coal ash slags.
机译:结合热力学计算机程序包F〜* A〜* C〜* T,建立了Al_2O_3-CaO-'FeO'-SiO_2体系中部分结晶矿渣的粘度模型。从液相中结晶出来的固体比例和通过F〜* A〜* C〜* T预测的剩余液相的组成被用于粘度模型。已使用大型实验数据集在Al_2O_3-CaO-'FeO'-SiO_2系统中在接近金属铁平衡的还原条件下测试了各种非均质粘度模型。发现具有新的经验参数的Roscoe方程与实验数据提供了合理的一致性。给出了在工业有色冶炼炉渣系统中模型应用的例子。该模型也可以应用于煤灰渣。

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