Phase relationship of complex multi-component system in chromate cleaner   production

CORC > 北京大学 > 工学院

	Phase relationship of complex multi-component system in chromate cleaner production
	Ge, Xinlei ; Wang, Xidong ; Zheng, Shili ; Mei, Zhang ; Yi, Zhang
刊名	progress in natural science
	2007
关键词	chromite chromate system thermodynamics calculation phase diagram
英文摘要	The phase relationships of the complex multi-component systems in the liquid-phase oxidization and separation process related with the chromate cleaner production are investigated theoretically and experimentally. The phase diagram of main system FeCr2O4-KOH-O-2 of oxidization process and the relationship of its standard Gibbs free energy change with temperature are calculated. A series of phase diagrams of the separation process at different temperatures, such as K(Na)OH-K(Na)(2)CrO4-H2O, KOH-KAlO2-H2O, K(Na)OH-K(Na)(2)CO3-H2O, K(Na)OH-K(Na)HCO3-H2O and K(Na)HCO3-K(Na)(2)CrO4-H2O have also been calculated. Some experiments are carried out to verify the calculated results. Our results showed that the sub-molten salt media are suitable for the oxidization and separation processes; FeCr2O4 can be oxidized across a wide range of temperature; K(Na)(2)CrO4 can be separated from K(Na)AlO2 system at appropriate temperature and proper concentration; the crystallization of carbonate is easier than that of K(Na)(2)CrO4.; Materials Science, Multidisciplinary; Multidisciplinary Sciences; SCI(E); 0; ARTICLE; 7; 845-850; 17
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/397819]
专题	工学院
推荐引用方式 GB/T 7714	Ge, Xinlei,Wang, Xidong,Zheng, Shili,et al. Phase relationship of complex multi-component system in chromate cleaner production[J]. progress in natural science,2007.
APA	Ge, Xinlei,Wang, Xidong,Zheng, Shili,Mei, Zhang,&Yi, Zhang.(2007).Phase relationship of complex multi-component system in chromate cleaner production.progress in natural science.
MLA	Ge, Xinlei,et al."Phase relationship of complex multi-component system in chromate cleaner production".progress in natural science (2007).