| Kinetics of Oxidation Reaction for Magnetite Pellets | |
| Alternative Title | Kinetics of Oxidation Reaction for Magnetite Pellets |
| Liang Ruquan; Yang Shuo; Yan Fusheng; He Jicheng | |
| 2013 | |
| Source Publication | JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
 |
| ISSN | 1006-706X |
| Volume | 20Issue:9Pages:16-20 |
| Abstract | An experiment for the oxidation process of single magnetite pellet and theoretical analysis based on modified unreacted core shrinking (MUCS) model were carried out, and the controlling mechanisms of the initial and developing reactions were examined, respectively. From the study of the initial reaction, it was found that the chemical reaction of surface is the controlling step of the overall reaction when the temperature is up to about 750 K, while the mass transfer through the gaseous boundary layer dominates the reaction rate when the temperature is above 750 K. As the reaction developing within the pellet, the mass transfer through the produced layer becomes the controlling step. In addition, the effects of reaction conditions (such as oxygen concentration, temperature) on the fractional oxidation of magnetite pellet were determined. |
| Other Abstract | An experiment for the oxidation process of single magnetite pellet and theoretical analysis based on modified unreacted core shrinking (MUCS) model were carried out, and the controlling mechanisms of the initial and developing reactions were examined, respectively. From the study of the initial reaction, it was found that the chemical reaction of surface is the controlling step of the overall reaction when the temperature is up to about 750 K, while the mass transfer through the gaseous boundary layer dominates the reaction rate when the temperature is above 750 K. As the reaction developing within the pellet, the mass transfer through the produced layer becomes the controlling step. In addition, the effects of reaction conditions (such as oxygen concentration, temperature) on the fractional oxidation of magnetite pellet were determined. |
| Keyword | magnetite pellet shaft furnace kinetics oxidation reaction controlling step |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] |
| CSCD ID | CSCD:4941339 |
| Citation statistics |
Cited Times:2[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/153998 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Liang Ruquan,Yang Shuo,Yan Fusheng,et al. Kinetics of Oxidation Reaction for Magnetite Pellets[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2013,20(9):16-20. |
| APA | Liang Ruquan,Yang Shuo,Yan Fusheng,&He Jicheng.(2013).Kinetics of Oxidation Reaction for Magnetite Pellets.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,20(9),16-20. |
| MLA | Liang Ruquan,et al."Kinetics of Oxidation Reaction for Magnetite Pellets".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 20.9(2013):16-20. |
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