Abstract
Depletion of uranium ore deposits is leading to a need for more efficient uranium extraction techniques. In this study, gas-phase electric discharge is applied to an aqueous leaching solution dispersed between electrodes as a technique for enhancing acidic extraction of uranium. Application of the electric discharge treatment resulted in a 1.5 to 2.0 times increase in the leaching rate and an improvement in uranium recovery of 4%. The enhanced extraction method was found to involve oxidation of ferrous ions in the acidic aqueous solution by nitrogen-containing ions generated in the spark discharge channels.
| Original language | English |
|---|---|
| Pages (from-to) | 37-41 |
| Number of pages | 5 |
| Journal | Hydrometallurgy |
| Volume | 162 |
| DOIs | |
| Publication status | Published - 1 Jun 2016 |
Keywords
- Acidic leaching
- Nitrogen oxides
- Oxidation
- Spark discharge
- Uranium
ASJC Scopus subject areas
- Industrial and Manufacturing Engineering
- Materials Chemistry
- Metals and Alloys
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Kornev, I. I., Osokin, G. E., Yavorovsky, N., Morozov, A., & Litvinenko, V. (2016). Pulsed electric discharge treatment of uranium leaching solutions: A method for accelerated extraction. Hydrometallurgy, 162, 37-41. https://doi.org/10.1016/j.hydromet.2016.02.006