Abstract
Rates of the air-oxdation of a graphite sphere heated in the temperature range between 800 and 1070°C were studied. At higher temperatures more than 850°C the reaction was controlled by the gas-film diffusion and the abserved rates of the reaction well coincided with the theoretical prediction. In the heating at 850°C the progress of reaction was affected by the chemical reaction and the intraparticle diffusion processes.
