Skip to main content Accessibility help

Iron ore reduction in a small fluidized bed

  • Y.-H. Lin, Z.-C. Guo and H.-Q. Tang


To optimize the process and improve the degree of reduction, a two-stage experiment was designed. It was carried out in a micro-fluidized bed. It is operated as a differential reactor to ensure every particle in the micro-fluidized bed is at equal temperature, concentration and residence time. The experiment used iron ore powder from Yangdi. The reducing gas and temperature in the pre-reduction stage were, respectively, pure CO and 625 °C. In the final reduction stage, the temperature and reducing gas were, respectively, 800 °C and pure CO. The residence time was between 10 min and 60 min. In addition to the experiment, a microscopic technique was also carried out. The test shows a significant influence of the temperature and residence time of the two-step experiment on the final reduction degree.



Hide All
[1] Man-sheng, Chu, Jue, Fang, Journal of Northeastern University (Natural Science) 23 (2002) 32
[2] Feilmayr, C., Thumhofer, A., Winter, F., et al., ISIJ Int. 44 (2004) 1125-1133
[3] Thumhofer, A., Schachinger, M., Winter, F., et al., ISIJ Int. 45 (2005) 151
[4] Habermann, A., Winter, F., Hofbauer, H., et al., ISIJ Int. 40 (2000) 935
[5] Kumaran, V., Rev. Metall. Cah. Inf. Tech. 364 (1998) 163-185
[6] V.S. Gmbh, Analytical Instruction for Internal Use [M], Austria, Linz, 2003
[7] N. Eder, C. Pawlik, S. Schuster, et al., Memory-Effekte von Feineisenerzen bei hohen Drucken und Temperaturen [M], Wien: Intermediate Report for VAI, 2004
[8] Yin-he, Lin, Zhan-cheng, Guo, Hui-qing, Tang, et al., J. Iron Steel Res. Int. 19 (2012) 06-08



Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed