Abstract
A reaction model has been developed for the AOD process that predicts the ratc of decarburization during stainless steel making. The reaction model is based on the assumptions that the injeetd oxygen primarily oxidizes chromium in the tuyere zone and that chromium oxide subsequently oxidizes the carbon as it rises in the bath with the argon bubbles. It is assumed that the rate of decarburization is controlled by the liquidphase mass transfer of carbon to the bubble surface. The model has been ex tended to other operating condition such as different O2/Ar ratios, bath depth and so on.
