Email this article Simulation of thermal decomposition of a nitric acid solution of acetohydroxamic acid during SNF reprocessing
- Authors: Kalistratova V.V1, Smirnov A.V1, Belova E.V1
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Affiliations:
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
- Issue: Vol 65, No 5 (2023)
- Pages: 403-409
- Section: Articles
- URL: https://bakhtiniada.ru/0033-8311/article/view/233936
- DOI: https://doi.org/10.31857/S0033831123050015
- EDN: https://elibrary.ru/XTWPZI
- ID: 233936
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Abstract
A thermal analysis of a solution of acetohydroxamic acid in 12 mol/L HNO3 was carried out. The activation energy, the speci c thermal e ect, the duration and rate of the exothermic reaction, the pre-exponential factor, the onset temperature and self-heating value of the sample, and the change in pressure and the speci c volume of the evolved gases were determined. It was shown that under experimental conditions this reaction proceeds in the autocatalytic mode. On the basis of experimental data, a kinetic equation for the reaction was obtained, which was used to create a model of the reaction under various conditions. The reliability of the simulation results was veri ed by di erential scanning calorimetry.
About the authors
V. V Kalistratova
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
A. V Smirnov
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
E. V Belova
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: bl174@bk.ru
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