Ion-exchange processes of some trivalent elements on amorphous zirconium phosphate up to 250°C
✍ Scribed by Aleksandar Lj. Ruvarac; Vojislav D. Marijanac
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 466 KB
- Volume
- 76
- Category
- Article
- ISSN
- 1873-3778
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✦ Synopsis
Tile
effect of temperature in the range zs-qjo" on the distribution of trace amounts of rndioactive Eu 3+, Ce3+ and Fc3+ 011 amorphous zirconium phosphate, and also the effect of nitric acid concentration, have been studied. The experiments were carried out at zs", so", ILOO, ISO", zoo" and 250". With increasing temperature, the clistribution of the trace amounts of EL.?+ and Ce3+ increased very slightly, while the increase in the distribution of Fe 3+ was greater. Ikrthermore, it was concluded that the reactions invcstigatecl are endothermic.
These distribution data were used for the calculation of the thermodynamic equilibrium constants and other thermodynamic data.