MnO-SiO<sub>2</sub>渣系作用濃度的計算模型

MnO-SiO₂渣系作用濃度的計算模型

摘要: 根據爐渣結構的共存理論用回歸分析法確定了MnSiO₃和Mn₂SiO₄是存在于MnOSiO₂渣系中且參加其內部化學反應的組元。由此得出本渣系的結構單元為Mn²⁺,O^2-簡單離子和SiO₂,Mn₂SiO₃,Mn₂SiO₄分子,進而推導出本渣系各組元作用濃度的計算模型。
在1600℃下計算的N_MnO與實測a_MnO一致;但在高MnO含量和低溫度下兩者間表現出差別,這是由于MnO-SiO₂渣系中出現兩相共存的現象,使系統遠離平衡所致。

Abstract: In accordance with the coexistence theory of slag structure and by means of regression analysis, the presence of MnSiO₃ and Mn₂SiO₄ in the slag system MnO-SiO₂(and that both of them take part in the reaction of this system) has been determined, therefore the structural units of this system can be expressed as simple ions Mn²⁺ O^2- and molecules SiO₂, MnMnSiO₃, Mn₂SiO₄ and the calculating model of mass action concentrations can also be written.
At 1600℃ the calculated values of N_MnO are identical with the measured α_MnO, but the differences; between them at high concentrations of MnO and ower temperatures are due to the coexistence of liquid and solid in the slag system MnO-SiO₂, which makes it departure from equilibrium.