2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 2: Mineral Processing
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 446 pages |
| ISBN: | 978-1-987820-04-1 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Study on preparation of iron carbide from high phosphorus oolitic hematite and the effect on gangue
Henghui Wang1;1WUHAN UNIVERSITY OF SCIENCE AND TECHNOLOGY, Wuhan, China;
Type of Paper: Regular
Id Paper: 60
Topic: 2
Abstract:
In order to find a new way to utilize the high phosphorus oolitic hematite ore as raw material for steelmaking, the reduction and carburization of high phosphorus oolitic hematite by the gas of CH4-H2 were studied. The behavior of the gangue in process was investigated. High phosphorus oolitic hematite, reduction and carburization products were investigated by the means of XRD and scanning electron microscope. The main compositions of this ore are hematite and quartz, and main microstructure is oolitic cluster with the zonal distribution of hematite and apatite. The high phosphorus oolitic hematite pellet was reduced and carburized by CH4-H2 gas in the temperature range from 923 K to 1073 K. The reduction of high phosphorus oolitic hematite was promoted effectively by increasing the temperature in the range of 923 K to 1023 K, but the carburization was retarded with increasing temperature. The SEM and EDS analysis of the reduction and carburization products proved that phosphorus in gangue was mostly not reduced and still existed in apatite during reduction and carburization reaction.