1858 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
and the appropriate H2 concentration was determined to
be 80%.
Effect of Reduction Time
The variation of MD with reduction time was investigated
at reduction temperatures of 550 °C and 800 °C and H2
concentration of 80%. Figure 7 reveals the corresponding
results.
In the initial stage, the reduction reaction occurred
rapidly. When the reduction temperature was 800 °C, the
MD reached 47.60% in 10 min, which indicated that the
hydrogen reduction rate of boron-bearing iron concentrate
in a fluidized bed was much faster than that of coal-based
Figure 6. Effect of H
2 concentration on MD
Figure 7. Effect of reduction time on MD
and the appropriate H2 concentration was determined to
be 80%.
Effect of Reduction Time
The variation of MD with reduction time was investigated
at reduction temperatures of 550 °C and 800 °C and H2
concentration of 80%. Figure 7 reveals the corresponding
results.
In the initial stage, the reduction reaction occurred
rapidly. When the reduction temperature was 800 °C, the
MD reached 47.60% in 10 min, which indicated that the
hydrogen reduction rate of boron-bearing iron concentrate
in a fluidized bed was much faster than that of coal-based
Figure 6. Effect of H
2 concentration on MD
Figure 7. Effect of reduction time on MD