(北京科技大學(xué)冶金系， 北京 100083)
摘 要: 根據(jù)爐渣結(jié)構(gòu)的共存理論和相圖，推導(dǎo)了CaO-B2O3和 FeO-Fe2O3-B2O3渣系 的熱力學(xué)計算模型。結(jié)果表明：(1) 理論計算的CaO-B2O3渣系的作用濃度 NCaO及NB2O3 與實測的活度aCaO及aB2O3一致； (2) 理論計算的FeO-Fe2O3-B2O3渣系的氧化能力NFetO 與實測的爐渣FetO的活度值相符合。這說明本文提出的 熱力學(xué)計算模 型是合理的。
關(guān)鍵字: 共存理論 爐渣 活度 作用濃度
（Department of Metallurgy, University of Science and Technology Beijing, Beijing 100083）
Abstract:Based on the coexistence theory of slag structure and phas e diagrams, thermodynamic calculating models have been deduced for CaO-B2O3 and FeO-Fe2O3-B2O3 slag melts. It is shown from the calculated results that: (1) The calculated mass action concentrations of CaO, B2O3 are in good agreement with the measured activities of their units. (2) For the FeO-Fe2O3-B2O3 slag melt, the calculated NFetO is consistent with the experimental aFetO . Therefore, the above mentioned mode ls are reasonable.
Key words: coexistence theory slag activity mass action concentration
