The changes in concentrations of ZrCl4 and UC14 depending on the current density (0.08-0.63 A/cm2), duration of electrolysis (1-24 h), and initial content of ZrCl4 (0-12.3 wt %) in the melt (NaCl-KCl)eq-UO2C12-ZrCl4 at the UO2-ZrO2 cathode deposits formation were investigated. Uranium tetrachloride appears in the electrolyte as a result of the exchange reaction between ZrCl4 and UO2, which takes place on the electrode when recovering ions UC>2+. The quantitative difference between the changes in the mole-fraction concentrations of zirconium and uranium tetrachloride’s in the salt phase was found. The difference in creased as the electrolysis duration and the initial ZrCl4 content in the electrolyte increased and the current density decreased. The ZrCl4 mole-fraction concentration varies greater compared with that of UC14. It is shown that the reason for this difference is the higher volatility of ZrCl4 in the molten salt compared with that of UC14.
|投稿的翻译标题||Changes in quantitative composition of NaCl-KC1-U02C12- ZrCl4 melt during electrolysis|
|州||Published - 2016|
- 31.00.00 CHEMISTRY
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