A study of thermolysis of irradiated diamide-containing extraction systems with nitric acid

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 HNO3 was investigated. The effect of pre-irradiation 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 °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. Keywords: Trifluoromethylphenylsulphone (FS-13), Diamides of dicarboxylic acids, Thermal stability, Electron irradiation, Extraction system, Fire- and explosion safety