Thermodynamic assessment of the (LiF + UF3) and (NaF + UF3) systems
In this article new thermodynamic descriptions of the LiF-UF3 and the NaF-UF3 systems based on new calorimetric data are presented. The experimental investigations were carried out using differential scanning calorimetry (DSC) to obtain phase transition temperatures between 0 - 60 mol% of UF3. On the basis of these measurements a thermodynamic assessment of the (Lix U1-x)F3-2x and (Nax U1-x)F3-2x liquid solutions, using the quasi-chemical model was achieved. UF3 undergoes a disproportionation at higher temperatures to UF4 and pure U which had a signifcant impact on the transition temperatures in the LiF-UF3 system. For this reason the influence of the presence of up to 15 mol% of UF4 in this system was calculated and compared to the experimental results. The final thermodynamic description was corrected for the pure binary system.
BEILMANN Markus;
BENES Ondrej;
KONINGS Rudy;
FANGHÄNEL Th;
2013-09-27
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
JRC69519
0021-9614,
http://www.sciencedirect.com/science/article/pii/S002196141200300X,
https://publications.jrc.ec.europa.eu/repository/handle/JRC69519,
10.1016/j.jct.2012.08.001,
Additional supporting files
| File name | Description | File type | |
|---|
