Published February 1994
| Version v1
Journal article
Thorium equilibria with the sodium form of clinoptilolite and mordenite
- 1. Athens National Technical Univ. (Greece). Dept. of Chemical Engineering
Description
A study has been performed in order to examine the ion exchange behavior of tetravalent thorium ions using natural sodium clinoptilolite and mordenite. The free energy values, ΔG0, were calculated and found to be 3.33 kJ/g eq for the Th/Na-CLI system, and for Th/Na-MOR 3.94 kJ/g eq. Despite the fact that the overall preference of the zeolites is for the sodium ions, thorium uptake was quite significant for mordenite, covering 30% of its theoretical exchange capacity at the equilibrium point, while for clinoptilolite only 10% was occupied. (author) 20 refs.; 5 figs.; 1 tab
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 178
- Journal Issue
- 1
- Journal Page Range
- p. 143-151.
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 25038625
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CHEMICAL COMPOSITION; CLINOPTILOLITE; EQUILIBRIUM; ION EXCHANGE; SODIUM; THORIUM 232; URANIUM 233
- Descriptors DEC
- ACTINIDE NUCLEI; ALKALI METALS; ALPHA DECAY RADIOISOTOPES; CLAYS; ELEMENTS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; ISOTOPES; MATERIALS; METALS; MINERALS; NEON 24 DECAY RADIOISOTOPES; NUCLEI; RADIOISOTOPES; SILICATE MINERALS; SPONTANEOUS FISSION RADIOISOTOPES; THORIUM ISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES