Pulsed electric discharge treatment of uranium leaching solutions: A method for accelerated extraction

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1 Citation (Scopus)

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 languageEnglish
Pages (from-to)37-41
Number of pages5
JournalHydrometallurgy
Volume162
DOIs
Publication statusPublished - 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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