In this study, fluidization and hydrogen reduction of fine Fe₂O₃ particles with magnetic field were investigated. Fine Fe₂O₃ particles, belonging to Geldart group C, undergo heterogeneous fluidization by conventional fluidization. The agglomeration of products during general fluidization of fine Fe₂O₃ particles was verified, and the pressure drop showed no tendency. The pressure drop stabilized, the magnetic field caused the interparticle force to decrease. High-quality Products without agglomeration were produced under the influence of a magnetic field. With the assistance of the magnetic field, the products showed chain structure after hydrogen reduction. Analysis based on a shrinking core model confirmed that oxygen and iron were distributed on the surface and in the center of the particles, respectively. Studies on the problems associated with conventional fluidization, improvement of magnetic field assisted fluidization and reduction were conducted.

在这项研究中，研究了Fe ₂ O ₃细颗粒在磁场作用下的流化和氢还原作用。属于Geldart组C的Fe ₂ O ₃细颗粒通过常规流化进行多相流化。细粉Fe ₂ O _3的一般流化过程中产物的团聚颗粒被证实，并且压降没有趋势。压降稳定，磁场使粒子间力减小。在磁场的影响下生产出了无团聚的高质量产品。在磁场的帮助下，产物在氢还原后显示出链结构。基于收缩核模型的分析证实，氧和铁分别分布在颗粒的表面和中心。研究了与常规流化有关的问题，改进了磁场辅助流化和还原的问题。