常用二元熔鹽氯化物相圖及其熱力學性質的最優化

The Optimization of Thermodynamic Properties and Phase Diagrams of Some Binary Chloride Systems

摘要: 本文介紹了一種優化處理二元相圖及熱力學性質的方法。通過系統分析全部所獲得的LiCl—KCl,LiCl—SrCl₂,NaCl—SrCl₂,NaCl—CaCl₂,NaCl—BaCl₂,KCl—BaCl₂,CaCl₂—BaCl₂,BaCl₂—SrCl₂等八個二元系熱力學性質和相圖的數據并進行優化處理,取得了熱力學性質和相圖自相一致的結果。

Abstract: A method based on least squares regression analysis has been proposed for the optimization of available thermodynamic properties and phase diagrams of binary systems.By using of this method, the excess entropy of binary system can be predicted from the phase diagram. Eight binary chloride systems were chosen for the study. LiCl-KCl, NaCl-SrCh, NaCl-CaCl₂, NaCl-BaCl₂, KCl-BaCl₂, CaCl₂-BaCl₂, BaCl₂-SrCl₂. The thermodynamic properties, which were expressed in mathematical form by critical analysis of all available phase diagrams and thermodynamic data, of all phases in the above binary systems have been obtained.In the same time, the phase diagram and other thermodynamic data can be critically assessed in a thermodynam.ically self-consistent manner.