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Title: Utilization of Kinetic Isotope Effects for the Concentration of Tritium

Abstract

Work is in progress to develop methods for concentrating tritium in water based on large primary isotope effects in catalytic redox processes. Basic research is being conducted to develop the chemistry of a complete cyclic process. The process will remove tritium from H2O by concentrating it with respect to protio-water. This research involves developing chemical cycles that produce high concentration factors for HTO based on the discrimination of CH and C-T bonds in oxidation reactions. Several steps are required in a cyclic process for the concentration of tritium in water. In the first step, the tritium is incorporated in an organic compound. H-T discrimination occurs as the tritium containing compound is oxidized in a step involving a Ru(IV) oxo complex. Strong primary kinetic isotope effects lead to the oxidation of C-H bonds in preference to C-T bonds, and this reaction leads to concentration of tritium in the organic compound. The reduced form of the ruthenium compound can be reoxidized so that the oxidation step can be made catalytic.

Authors:
; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN; university of North Carolina, Chapel Hill, North Carolina (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (US)
OSTI Identifier:
827388
Report Number(s):
EMSP-55103-2000
R&D Project: EMSP 55103; TRN: US200425%%634
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES; CHEMISTRY; ISOTOPE EFFECTS; KINETICS; ORGANIC COMPOUNDS; OXIDATION; RUTHENIUM COMPOUNDS; TRITIUM; WATER

Citation Formats

Brown, Gilbert M, Meyer, Thomas J, and Moyer, Bruce A. Utilization of Kinetic Isotope Effects for the Concentration of Tritium. United States: N. p., 2000. Web. doi:10.2172/827388.
Brown, Gilbert M, Meyer, Thomas J, & Moyer, Bruce A. Utilization of Kinetic Isotope Effects for the Concentration of Tritium. United States. doi:10.2172/827388.
Brown, Gilbert M, Meyer, Thomas J, and Moyer, Bruce A. Thu . "Utilization of Kinetic Isotope Effects for the Concentration of Tritium". United States. doi:10.2172/827388. https://www.osti.gov/servlets/purl/827388.
@article{osti_827388,
title = {Utilization of Kinetic Isotope Effects for the Concentration of Tritium},
author = {Brown, Gilbert M and Meyer, Thomas J and Moyer, Bruce A},
abstractNote = {Work is in progress to develop methods for concentrating tritium in water based on large primary isotope effects in catalytic redox processes. Basic research is being conducted to develop the chemistry of a complete cyclic process. The process will remove tritium from H2O by concentrating it with respect to protio-water. This research involves developing chemical cycles that produce high concentration factors for HTO based on the discrimination of CH and C-T bonds in oxidation reactions. Several steps are required in a cyclic process for the concentration of tritium in water. In the first step, the tritium is incorporated in an organic compound. H-T discrimination occurs as the tritium containing compound is oxidized in a step involving a Ru(IV) oxo complex. Strong primary kinetic isotope effects lead to the oxidation of C-H bonds in preference to C-T bonds, and this reaction leads to concentration of tritium in the organic compound. The reduced form of the ruthenium compound can be reoxidized so that the oxidation step can be made catalytic.},
doi = {10.2172/827388},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}

Technical Report:

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