Texture poreuse et reactivite d'un carbone vitreux et d'un coke de saccharose—I. Examen de l'oxyreactivite et de la carboxyreactivite

Vitreous carbon (in shape of plates and balls) and a saccharose coke, both heat-treated at 1000°C were examined. The variations of the oxyreactivity and of carboxy-reactivity were determined against burn-off for various granulometric portions at different temperatures. Though the average reactivity of the carbons is comparable, differences in structure were detected. In particular, for vitreous carbon balls, the carbon reactivity is greater for the core of the particles than for their periphery. This is most likely due to the treatment undergone by this material at the very last stage of its preparation to mold it to the desired shape. Experimental data are presented which suggest that texture of vitreous carbon balls and of saccharose coke present some similarities.