Abstract: The direct reduction experiments of hematite powder using CO and H₂ as reducing gas respectively were conducted in a vertical tubular resistance furnace，which simulated a fluidized bed reactor.The results reveal that reducing the size of the hematite powders，increasing the reaction temperature，prolonging the reaction time and increasing the flow of reducing gas can enhance both the reduction rate of speed and the content of Fe.When the other reaction conditions are the same，the reducing power of H₂ for the hematite powders is far stronger than CO.The reduction products，which were prepared under the following conditions：160~40 μm of the hematite powders size，using H₂ as reducing gas with a flow of 0.36 m³/h at 950 ℃ for 60 min，were treated by grinding and low-intensity magnetic separation，and then a concentrate with an iron grade and recovery of 74.92% and 96.82%，respectively，can be obtained.

Key words: Hematite powder, Fluidized bed, Direct reduction