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测定了盐酸介质中铀(Ⅲ)在空气中的氧化速率以及不同条件对氧化速率的影响,得出反应速率方程。反应速率随温度升高而增加,表观活化能为34.3kJ/mol。铀(Ⅲ)在空气中转化为铀(Ⅳ)的反应,可能是一个发生在气液相界面的催化氧化过程。
The oxidation rate of uranium (Ⅲ) in air and the influence of different conditions on the oxidation rate were measured and the reaction rate equation was obtained. The reaction rate increases with increasing temperature, and the apparent activation energy is 34.3 kJ / mol. The reaction of uranium (Ⅲ) into uranium (Ⅳ) in the air may be a catalytic oxidation process occurring at the gas-liquid interface.