Vapour-Liquid and Liquid-Solid Equilibria in the System Th(NO3)4-UO2(NO3)2-HNO3-H2O

被引：0
|
作者：
V. I. Volk
A. Yu. Vakhrushin
S. L. Mamaev
Yu. P. Zhirnov
机构：
[1] SSC A.A. Bochvar All-Russia Research Institute of Inorganic Materials (VNIINM),
[2] SSC A.A. Bochvar All-Russia Research Institute of Inorganic Materials (VNIINM),undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2000年 / 246卷
关键词：
Nitrate; Hexa; Liquid Phase; Nitric Acid; HNO3;
D O I：
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中图分类号：
学科分类号：
摘要：
Vapour-liquid and liquid-solid equilibria were studied in the system Th(NO3)4-UO2(NO3)2-HNO3-H2O. Hexahydrate of thorium nitrate as well as hexa- and trihydrate of uranyl nitrate were supposed to be formed in this system. Empiric equations of solubility isotherms were derived for 25 °C and liquid phase densities were determined. It was established that nitric acid was salted out into the vapour phase by the nitrates present in the system both separately and simultaneously. Empiric equation was derived that describes the relationship between the HNO3 concentration of condensate and that of all liquid phase components.
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页码：703 / 708
页数：5
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