U与CO,CO_2反应动力学的初步研究

PRIMARY STUDY OF REACTION KINETICS OF URANIUM WITH CO OR CO_2

在一定温度下 ,将不同形态的铀样品密闭贮存在容器中并充入一定压力的高纯CO或CO2 气体 ,通过定期测量贮存容器中气体组成 ,初步研究了铀与CO或CO2 的反应动力学。结果表明 ,铀的形态 ,温度及气体种类对反应速度影响很大。与管状铀相比 ,铀粉与CO或CO2 反应的速率要大得多 ;温度升高有利于铀与CO或CO2 的反应 ;在相同温度条件下 ,CO与铀反应生成CO2 的速度大于CO2 与铀反应生成CO的速度。

In order to study the reaction kinetics of uranium with CO or CO 2,uranium samples of different forms are obturated in reaction vessels and then CO or CO 2 is filled in. Gases in vessels are analyzed at different storage time.The experimental results show that the form of uranium,temperature and the kind of gas affect the reaction remarkably. The reaction rate of uranium powder with CO or CO 2 is faster than that of uranium pipe with CO or CO 2. It is advantageous to the reaction of uranium with CO or CO 2 by raising the temperature. The reaction rate of uranium with CO is faster than that of uranium with CO 2 at the same temperature.