Studies on understanding the mechanism of the enhanced conductivity of the third phase in PUREX process during reprocessing of fast reactor fuel

S. Subbuthai, P. Sahoo, A. Nageswara Rao, R.V. Subba Rao

Research output: Contribution to journalArticle

Abstract

Towards development of electrical conductivity based sensors for online detection of formation of third phase during reprocessing of Pu rich spent nuclear fuels, laboratory studies were carried out using U4+ solutions in various experimental conditions. Third phases were generated by extracting U4+ from nitric acid medium by 1.09 M TBP at different A/O (A: aqueous, O: organic) ratios. The results of this study indicate that the third phase is nearly 100-300 times more conducting than lean organic phase and saturated phase. The higher conductivity of third phase as compared to that of other two phases is explained based on the principle of reverse micelle formation and charge movement between the micro emulsion globules by percolation phenomenon. © 2012 Akadémiai Kiadó, Budapest, Hungary.
Original languageEnglish
Pages (from-to)943-949
Number of pages7
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume295
Issue number2
DOIs
Publication statusPublished - 2013

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Nuclear fuel reprocessing
Nitric Acid
Electric Conductivity
Hungary
Fast reactors
Spent fuels
Nuclear fuels
Micelles
Nitric acid
Emulsions
Sensors
tributyl phosphate

Cite this

@article{ab5bf96d3ce147bf8a98eab72d742ee5,
title = "Studies on understanding the mechanism of the enhanced conductivity of the third phase in PUREX process during reprocessing of fast reactor fuel",
abstract = "Towards development of electrical conductivity based sensors for online detection of formation of third phase during reprocessing of Pu rich spent nuclear fuels, laboratory studies were carried out using U4+ solutions in various experimental conditions. Third phases were generated by extracting U4+ from nitric acid medium by 1.09 M TBP at different A/O (A: aqueous, O: organic) ratios. The results of this study indicate that the third phase is nearly 100-300 times more conducting than lean organic phase and saturated phase. The higher conductivity of third phase as compared to that of other two phases is explained based on the principle of reverse micelle formation and charge movement between the micro emulsion globules by percolation phenomenon. {\circledC} 2012 Akad{\'e}miai Kiad{\'o}, Budapest, Hungary.",
author = "S. Subbuthai and P. Sahoo and {Nageswara Rao}, A. and {Subba Rao}, R.V.",
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Studies on understanding the mechanism of the enhanced conductivity of the third phase in PUREX process during reprocessing of fast reactor fuel. / Subbuthai, S.; Sahoo, P.; Nageswara Rao, A.; Subba Rao, R.V.

In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 295, No. 2, 2013, p. 943-949.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Studies on understanding the mechanism of the enhanced conductivity of the third phase in PUREX process during reprocessing of fast reactor fuel

AU - Subbuthai, S.

AU - Sahoo, P.

AU - Nageswara Rao, A.

AU - Subba Rao, R.V.

N1 - Export Date: 19 June 2018

PY - 2013

Y1 - 2013

N2 - Towards development of electrical conductivity based sensors for online detection of formation of third phase during reprocessing of Pu rich spent nuclear fuels, laboratory studies were carried out using U4+ solutions in various experimental conditions. Third phases were generated by extracting U4+ from nitric acid medium by 1.09 M TBP at different A/O (A: aqueous, O: organic) ratios. The results of this study indicate that the third phase is nearly 100-300 times more conducting than lean organic phase and saturated phase. The higher conductivity of third phase as compared to that of other two phases is explained based on the principle of reverse micelle formation and charge movement between the micro emulsion globules by percolation phenomenon. © 2012 Akadémiai Kiadó, Budapest, Hungary.

AB - Towards development of electrical conductivity based sensors for online detection of formation of third phase during reprocessing of Pu rich spent nuclear fuels, laboratory studies were carried out using U4+ solutions in various experimental conditions. Third phases were generated by extracting U4+ from nitric acid medium by 1.09 M TBP at different A/O (A: aqueous, O: organic) ratios. The results of this study indicate that the third phase is nearly 100-300 times more conducting than lean organic phase and saturated phase. The higher conductivity of third phase as compared to that of other two phases is explained based on the principle of reverse micelle formation and charge movement between the micro emulsion globules by percolation phenomenon. © 2012 Akadémiai Kiadó, Budapest, Hungary.

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DO - 10.1007/s10967-012-2279-8

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JF - Journal of Radioanalytical Chemistry

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