Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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A study of thermolysis of irradiated diamide-containing extraction systems with nitric acid

  • Srvortsov, I.V. (Frumkin Institute of Physical Chemistry and Electrochemistry RAS) ;
  • Belova, E.V. (Frumkin Institute of Physical Chemistry and Electrochemistry RAS) ;
  • Sokolov, I.P. (Scientific and Engineering Centre for Nuclear and Radiation Safety) ;
  • Rodin, A.V. (Frumkin Institute of Physical Chemistry and Electrochemistry RAS) ;
  • Stefanovsky, S.V. (Frumkin Institute of Physical Chemistry and Electrochemistry RAS) ;
  • Mysoedov, B.F. (Frumkin Institute of Physical Chemistry and Electrochemistry RAS)
  • Received : 2018.05.07
  • Accepted : 2018.07.19
  • Published : 2018.12.25
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Abstract

The dynamics of gas release at thermal oxidation of extraction systems on the basis of diamides of dicarbonic acids in fluorinated sulphones with 14 mol/L $HNO_3$ was investigated. The effect of preirradiation of the mixtures with accelerated electrons on the kinetics of their thermolysis was determined. The mixtures were heated in an autoclave at temperatures of 170 and $200^{\circ}C$ and irradiated using an electron accelerator to absorbed doses of 0.1, 0.5, and 1.0 MGy. It has been shown that no conditions for autocatalytic oxidation at thermolysis of extraction mixtures irradiated up to a dose of 1 MGy were developed.

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References

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