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Heavy water recycling for producing deuterium compounds
Deuterium oxide (D(2)O) is a special variety of water that serves as a crucial resource in a range of applications, but it is a costly and unusual resource. We therefore developed a new D(2)O concentration system that combines a polymer electrolyte water electrolyzer and a catalytic combustor for re...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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The Royal Society of Chemistry
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9430630/ https://www.ncbi.nlm.nih.gov/pubmed/36128371 http://dx.doi.org/10.1039/d2ra04369f |
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author | Akutsu-Suyama, Kazuhiro Sajiki, Hironao Ueda, Misaki Asamoto, Makiko Tsutsumi, Yasuyuki |
author_facet | Akutsu-Suyama, Kazuhiro Sajiki, Hironao Ueda, Misaki Asamoto, Makiko Tsutsumi, Yasuyuki |
author_sort | Akutsu-Suyama, Kazuhiro |
collection | PubMed |
description | Deuterium oxide (D(2)O) is a special variety of water that serves as a crucial resource in a range of applications, but it is a costly and unusual resource. We therefore developed a new D(2)O concentration system that combines a polymer electrolyte water electrolyzer and a catalytic combustor for recycling used D(2)O. In this study, 1.6 L of used D(2)O, with a concentration of 93.1%, was electrolyzed for 13.6 h to obtain 0.62 L of D(2)O, with a concentration of 99.3%. In addition, the recombined water obtained by burning electrolytic gas using the catalytic combustor was also electrolyzed for 8.8 h to obtain 0.22 L of D(2)O, with a concentration of 99.0%. The estimated separation factor of this electrolyzer at 25 °C was 3.6, which is very close to the equilibrium constant of the water/hydrogen isotope exchange reaction. Recycled D(2)O was used as a deuterium source for the deuteration reaction of sodium octanoate, and 93.6% deuterated sodium octanoate was obtained. It is concluded that there were no impurities in the recycled D(2)O that interfered with the deuteration reaction. These results can lead to the development of a cost-effective deuteration method for these materials. |
format | Online Article Text |
id | pubmed-9430630 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-94306302022-09-19 Heavy water recycling for producing deuterium compounds Akutsu-Suyama, Kazuhiro Sajiki, Hironao Ueda, Misaki Asamoto, Makiko Tsutsumi, Yasuyuki RSC Adv Chemistry Deuterium oxide (D(2)O) is a special variety of water that serves as a crucial resource in a range of applications, but it is a costly and unusual resource. We therefore developed a new D(2)O concentration system that combines a polymer electrolyte water electrolyzer and a catalytic combustor for recycling used D(2)O. In this study, 1.6 L of used D(2)O, with a concentration of 93.1%, was electrolyzed for 13.6 h to obtain 0.62 L of D(2)O, with a concentration of 99.3%. In addition, the recombined water obtained by burning electrolytic gas using the catalytic combustor was also electrolyzed for 8.8 h to obtain 0.22 L of D(2)O, with a concentration of 99.0%. The estimated separation factor of this electrolyzer at 25 °C was 3.6, which is very close to the equilibrium constant of the water/hydrogen isotope exchange reaction. Recycled D(2)O was used as a deuterium source for the deuteration reaction of sodium octanoate, and 93.6% deuterated sodium octanoate was obtained. It is concluded that there were no impurities in the recycled D(2)O that interfered with the deuteration reaction. These results can lead to the development of a cost-effective deuteration method for these materials. The Royal Society of Chemistry 2022-08-31 /pmc/articles/PMC9430630/ /pubmed/36128371 http://dx.doi.org/10.1039/d2ra04369f Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Akutsu-Suyama, Kazuhiro Sajiki, Hironao Ueda, Misaki Asamoto, Makiko Tsutsumi, Yasuyuki Heavy water recycling for producing deuterium compounds |
title | Heavy water recycling for producing deuterium compounds |
title_full | Heavy water recycling for producing deuterium compounds |
title_fullStr | Heavy water recycling for producing deuterium compounds |
title_full_unstemmed | Heavy water recycling for producing deuterium compounds |
title_short | Heavy water recycling for producing deuterium compounds |
title_sort | heavy water recycling for producing deuterium compounds |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9430630/ https://www.ncbi.nlm.nih.gov/pubmed/36128371 http://dx.doi.org/10.1039/d2ra04369f |
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