Ion exchange in molten salts. I. The ion-exchange properties of sodium zeolite A in molten sodium nitrate; exchange reactions with alkali metal, thallium, and silver cations

1968 ◽  
Vol 72 (8) ◽  
pp. 2885-2889 ◽  
Author(s):  
M. Liquornik ◽  
Y. Marcus
2003 ◽  
Vol 14 (Supplement) ◽  
pp. 169-172 ◽  
Author(s):  
Noriko SUZUKI ◽  
Mami ITOH ◽  
Megumi IGARASHI ◽  
Yasushi KANZAKI ◽  
Yu KOMATSU

1992 ◽  
Vol 271 ◽  
Author(s):  
M. E. Villafuerte-Castrejón ◽  
A. Aragón-Piña

ABSTRACTIon-exchange reactions, particularly with molten salts, are a convenient low temperature route to prepare new materials. Six different complex oxides (KTaO3, K2Ti4O4, NaAlSiO4, Na2Si2O5,ß-NaAlO2 and K2Ge4O9) were reacted with different salts (NaCI, KC1, Na2SO4, NaNO3, LiCl and LiNO3) by the ion exchange route with molten salts. In this work, new phases and substitution reactions are reported.


Author(s):  
J. G. Kim ◽  
J. H. Lee ◽  
G. I. Park ◽  
S. H. Lee ◽  
J. H. Kim

An advanced spent fuel management process based on the Li reduction of oxide spent fuel to a metallic form, under development at Korea Atomic Energy Research Institute (KAERI), will generate a LiCl waste. To develop an immobilization process of the LiCl waste salt using zeolite A, the behavior of zeolite A in molten LiCl salt with CsCl and SrCl2 has been investigated at 923 K. All the types of zeolite A’s have been transformed into zeolite Li-A after contact with molten LiCl salt. The sodalite phase has also been formed for the high LiCl/zeolite ratio, and this sodalite formation has been enhanced by an addition of CsCl or SrCl2. These results seem to be caused by the high temperature and Li concentration during the occlusion step. Ion-exchange properties of Cs and Sr at 923 K were very similar to those of the LiCl-KCl eutectic salt at 725 K: an uptake of Cs reached an equilibrium state very rapidly and kept constant, while that of Sr reached a maximum and decreased slightly.


Author(s):  
Adel A. Ismail ◽  
R.M. Mohamed ◽  
I.A. Ibrahim ◽  
G. Kini ◽  
B. Koopman

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