低价氯化铝分解的热力学分析  

Thermodynamic study on the reaction of producing liquid aluminum and gas aluminum trichloride from subchloride

作　　者：王平艳[1] 刘谋盛[2] 戴永年[3] 

机构地区：[1]昆明理工大学化学工程学院,云南昆明650224 [2]昆明理工大学生命科学学院,云南昆明650224 [3]昆明理工大学真空冶金及材料研究所,云南昆明650093

出　　处：《轻金属》2008年第1期13-16,共4页Light Metals

基　　金：云南省自然科学基金资助项目(2002E0012R)

摘　　要：对一氯化铝分解得到液态的金属铝和气态的三氯化铝的反应进行了热力学研究,经过热力学计算得到:在常压下,该反应发生的起点温度为1683.31K,当系统压力下降时,该反应的起点温度也会下降,任何压力下,温度越低越有利于本反应的发生;经过计算得到了该反应起点温度与系统压力间的关系,也得到了不同系统压力下反应吉布斯自由能与系统温度间的关系。In this paper, the Thermodynamic study on the reaction of producing liquid aluminum and aluminum trichloride from subchloride has been carried out. After thermodynamic calculation, the conclusion that under normal pressure, the initial temperature of the reaction is 1683.83℃, but when the system pressure drops, the initial temperature of the reaction will drop has been drawn, and the lower the system temperature, the easier the reaction will become. After thermodynamic calculation, the relationship between system pressure and the initial temperature of the reaction has been obtained, and also the relationship between system temperature and the Gibbs free energy of the reaction under different system pressures.

关 键 词：氧化铝 碳热还原 氯化法 低价氯化铝 热力学研究 

分 类 号：TF821[冶金工程—有色金属冶金] TQ124.4[化学工程—无机化工]