Two-site equilibrium model for ion exchange between monovalent cations and zeolite-a in a molten salt.
A two-site model has been derived and tested against experimental data for monovalent species ion exchange in molten chloride salt/zeolite A. This system is of interest for the application of spent nuclear fuel treatment. Fission products and transuranics that accumulate in a molten salt electrorefining process can be preferentially removed and eventually stabilized in a waste form, using zeolite A. An excellent fit of Cs-Rb-Na-Li-K data to the model was found with different selectivity sequences for the two sites. Cesium was found to be the preferred cation in the ?-cage sites, while lithium was preferred in the framework sites.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 961100
- Report Number(s):
- ANL/ENT/JA-44603; IECRED; TRN: US201010%%927
- Journal Information:
- Ind. Eng. Chem. Res., Vol. 42, Issue 18 ; Sep. 3, 2003; ISSN 0888-5885
- Country of Publication:
- United States
- Language:
- ENGLISH
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