Ion exchange in molten salts. III. The ion-exchange properties of sodium zeolite A in molten sodium nitrate. The exchange with calcium and strontium cations

1968 ◽  
Vol 72 (13) ◽  
pp. 4704-4705 ◽  
Author(s):  
M. Liquornik ◽  
Yizhak Marcus
Keyword(s):  
Ion Exchange ◽  
Sodium Nitrate ◽  
Molten Salts ◽  
Zeolite A ◽  
Molten Sodium ◽  
Exchange Properties

The Properties of Zeolite A in Molten LiCl Waste

2003 ◽  
Author(s):  
J. G. Kim ◽  
J. H. Lee ◽  
G. I. Park ◽  
S. H. Lee ◽  
J. H. Kim
Keyword(s):  
High Temperature ◽  
Ion Exchange ◽  
Management Process ◽  
Zeolite A ◽  
Spent Fuel ◽  
Fuel Management ◽  
Energy Research ◽  
Eutectic Salt ◽  
Waste Salt ◽  
Exchange Properties

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.

Synthesis, optimization and characterization of zeolite A and its ion-exchange properties

2010 ◽  
Vol 366 (1-3) ◽  
pp. 80-87 ◽  
Author(s):  
Adel A. Ismail ◽  
R.M. Mohamed ◽  
I.A. Ibrahim ◽  
G. Kini ◽  
B. Koopman
Keyword(s):  
Ion Exchange ◽  
Zeolite A ◽  
Exchange Properties

scholarly journals Ion Exchange Properties of Zeolite A and its Applications

1994 ◽  
Vol 5 (2) ◽  
pp. 52-61
Author(s):  
Hitoshi KOSHIMIZU ◽  
Takabumi SAKAMOTO
Keyword(s):  
Ion Exchange ◽  
Zeolite A ◽  
Exchange Properties

Studies on the thermodynamics and conductances of molten salts and their mixtures. Part VII. The electrical conductance of sodium chlorate and its mixtures with sodium nitrate

1968 ◽  
Vol 46 (8) ◽  
pp. 1293-1296 ◽  
Author(s):  
A. N. Campbell ◽  
E. T. van der Kouwe
Keyword(s):  
Constant Temperature ◽  
Sodium Nitrate ◽  
Molten Salts ◽  
Electrical Conductance ◽  
Sodium Chlorate ◽  
Activation Energies ◽  
Constant Composition ◽  
Temperature Range ◽  
Molten Sodium

The specific and equivalent conductances of molten sodium chlorate and of its mixtures with sodium nitrate have been determined over the temperature range 240–280 °C. The results are treated as temperature functions at constant composition and as composition functions at constant temperature. From these data, the activation energies of conductance have been derived. The results have been compared with various theoretical equations and the conclusion is made that, while melts containing lithium chlorate may be associated or complexed in some way, the sodium chlorate melts show less of such a structure and are more ionic.

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