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

Iakov Ivanovich Kornev, Georgy Evgenievich Osokin, N. Yavorovsky, A. Morozov, V. Litvinenko

R&D Laboratory for Clean Water

Research output: Contribution to journal › Article

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	https://doi.org/10.1016/j.hydromet.2016.02.006
Publication status	Published - 1 Jun 2016

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Keywords

Acidic leaching
Nitrogen oxides
Oxidation
Spark discharge
Uranium

ASJC Scopus subject areas

Industrial and Manufacturing Engineering
Materials Chemistry
Metals and Alloys

Cite this

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

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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.",

keywords = "Acidic leaching, Nitrogen oxides, Oxidation, Spark discharge, Uranium",

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AU - Morozov, A.

AU - Litvinenko, V.

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AB - 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.

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KW - Nitrogen oxides

KW - Oxidation

KW - Spark discharge

KW - Uranium

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Access to Document

10.1016/j.hydromet.2016.02.006