KINETICS AND MATHEMATICAL MODEL FOR REDUCTION PROCESS OF IRON ORE BRIQUETTE CONTAINING CARBON
含碳球团还原过程动力学及模型

The reduction process of iron ore briquette containing C(ICB) was investigated under different conditions in nitrogen atmosphere. It was found that the reduction rate in the center part of ICB was faster than that in the rim. According to this phenomenon, it can be believed that the solid reaction of Fe_xOy+yC =xFe+yCO is not the main reduction process and the previous model described process could not explain the real process exactly. In this paper, a new opinion on the reduction process was put forward and a new mathematical model was established for ICB reduction process. It was proved by experiments that the new model fits the reduction process quite well.