首页|Influence of free F- anions on evaporation behavior of molten salts containing ZrF4
Influence of free F- anions on evaporation behavior of molten salts containing ZrF4
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NSTL
Elsevier
The evaporation behavior of FLiNaK and FLiBe molten salts containing 5mol% ZrF4 was investigated by low pressure distillation method. It was found that compared with pure FLiNaK salt, the evaporation rates of LiF, NaF and KF decreased sharply in the ZrF4-FLiNaK salt; while in the case of ZrF4-FLiBe salt, the evaporation rate of LiF decreased to a certain degree, and that of BeF2 was almost the same as FLiBe salt without addition of ZrF4. XRD results showed that the fluorine were present as free anions in pure FLiNaK salt, while the formation of BeF4 2- existed in pure FLiBe salt. After the addition of ZrF4, the complexes of K3ZrF7 and Li2ZrF6 were observed in FLiNaK and FLiBe salts, respectively. The microstructure of salts showed the difference of coordinate numbers and activation energies of Zr-F by molecular dynamics (MD) simulation, which affected the evaporation behavior of the material. (C)& nbsp;2022 Elsevier B.V. All rights reserved.
NSTL
Elsevier
