CHEMICAL KINETICS OF PREPARING VN FROM REDUCING AND NITRIDING V2O5
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摘要: 研究以碳作为还原剂,还原氮化五氧化二钒制备氮化钒过程中的还原氮化反应动力学。在分别通入高纯氮气和氩气所得热重曲线的基础上,通过数据处理和回归分析得出了各步还原反应和氮化反应的反应活化能和频率因子,进而提出了各反应的速度常数(K)和反应温度(T)的经验公式。Abstract: The reaction kinetics of preparing VN from reducing and nitriding V2O5 by solid carbon was discussed. On the base of thermal gravimetric analysis under high pure nitrogen and argon atmosphere respectively, the activation energy and frequency factor of reduction and nitrdiation are got by regression analysis of experimental data. The experiential formula of velocity constant and temperature of each reaction are obtained.
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Key words:
- VN /
- kinetics /
- velocity constant /
- reaction temperature
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