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中文摘要：
在真空条件下，采用等温法对碳热还原氧化锶的动力学进行了研究。研究结果表明：还原温度对碳热还原氧化锶的还原速度影响较大，温度越高，还原速度越大，在温度高于1573K时，还原较快。根据Arrhenius方程计算出，在1473—1673K范围内，当碳的气化反应为控制环节时，反应活化能为163．39kJ·mol^-1；界面化学反应为控制环节时，反应活化能为212．29kJ·mol^-1；气相扩散为控制环节时的活化能为315．00—384．46kJ·mol^-1。扩散控制反应时活化能最大，真空条件下碳热还原氧化锶的还原速度由气相扩散控制。
英文摘要：
Vacuum thermal reduction kinetics of SrO pellets with graphite under the same temperature condition was studied. The re- sults showed that the effect of reduction temperature on reduction rate was remarkable, and the reduction rate increased with tempera- ture increasing, and the reduction rate was higher when the temperature was above 1573 K. The activation energies calculated with Ar- rhenius was 315.00 - 384.46 kJ ·mol^-1 under the control of gasification diffusion, and the activation energy was 163.39 kJ ·mol^-1 un- der the control of the boundary reaction of carbon, and the activation energy was 212.29 kJ·mol^-1 under the control of chemical reac- tion. The activation energy under the control of gasification diffusion was a maximum, so the gasification diffusion rate-determined step of the overall reduction process.
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