熔渣中饱和相组元作用浓度的计算

Calculation of Mass Action Concentration for Oxides Saturated in Slag Melts

在炉渣结构共存理论的基础上，讨论了当溶渣中出现某组元饱和时的作用浓度计算．研究发现，实测的活度值与计算的作用浓度值之间存在明显的分配关系．考虑此分配比后，可使得计算的作用浓度值和实测的活度值相一致．文中分别讨论了ＣａＯ－ｓｉＯ２、ＭｎＯ－ＳｉＯ２和ＭｇＯ－ＳｉＯ２渣系的分配比，进而推导了ｌｇＬ－１／Ｔ和析出自由能△Ｇ°－Ｔ的关系式．

On the basis of the coexistence theory of slag structure, mass action concentration for oxides saturated in slag melts are studied.It has been demonstrated that there is a good distribution relation between mass action concentration and activity.Considering this distribution relation, the calculated mass action concentrations for oxides saturated in slag melts agree with the measured activity well.Furthermore Cao-SiO2,MnO-Sio2,and MgO-Sio2,slag melts are discussed and the lgL￣l/T,△G°(seperation free energy) T relations are also deduced,