Аннотация:The dynamics of gas evolution during the thermal oxidation of 30% solutions of tri-n-butyl
phosphate (TBP) in Isopar-M saturated with 4.3, 8.2 and 12.0 mol/L nitric acid was investigated
in open vessels in the temperature range of 70°C to 150°C. The volume of the released gases has
been measured. The influence of the pre-irradiation by accelerated electrons has been determined
for the thermolysis and accumulation of liquid products of TBP degradation in the system TBPIsopar-
M-HNO3. The temperature borders of oxidation processes transition to autocatalytic regime
have been estimated. It has been shown, that the conditions resulting in growth of autocatalytic
oxidation do not exist under heating of single-phase systems in open vessels.