LiNO_3-KNO_3二元相图的热力学优化和计算  

Thermodynamic Optimization and Calculation of the LiNO_3-KNO_3 phase diagram

作　　者：王玉[1] 姜进红[1] 

机构地区：[1]合肥学院化学与材料工程系,安徽合肥230601

出　　处：《广东化工》2015年第8期82-83,共2页Guangdong Chemical Industry

基　　金：安徽省自然科学基金青年项目(1308085QB35);国家自科基金青年项目(51102073)

摘　　要：引入短程有序—扩展似化学模型来描述Li NO3-KNO3二元体系液相的Gibbs自由能,根据实验测定的相图数据,运用CALPHAD(Calculation of Phase Diagram)技术对该体系进行了热力学优化和计算,优化计算的结果和实测值符合很好。The Gibbs energy of liquid phases in the LiNO3-KNO3 system was described by the new modified quasi-chemical model in the pair approximation for local order. Based on measured phase equilibrium data, a set of thermodynamic functions have been optimized by using the CALPHAD technique. The calculations show good agreement with experimental phase diagrams and thermodynamic values.

关 键 词：LiNO3-KNO3 相图 优化计算 

分 类 号：O641.3[理学—物理化学]