Reduction Extraction Kinetics of Titania and Iron from an Ilmenite by H-2-Ar Gas Mixtures
文献类型：期刊论文
| 作者 | Wang, Yuming1; Yuan, Zhangfu2,3; Matsuura, Hiroyuki3; Tsukihashi, Fumitaka3 |
| 刊名 | ISIJ INTERNATIONAL
 |
| 出版日期 | 2009 |
| 卷号 | 49期号:2页码:164-170 |
| 关键词 | ilmenite reduction hydrogen kinetics rate controlling step |
| ISSN号 | 0915-1559 |
| 通讯作者 | Wang, YM |
| 英文摘要 | Reduction of an ilmenite concentrate as a natural concentration containing 49.78mass% TiO2 and 2796 mass% total Fe by H-2-Ar gas mixtures was investigated from 1073 to 1 273 K. Both the reduction degree and reduction rate increased with the increase of temperature and hydrogen content. The reduction degree of the ilmenite decreased due to the presence of impurities including manganese and silicon oxides in the ilmenite concentrate. During the reduction, the formation of manganese and silicon oxide-enriched zones prevented complete reduction of Fe2+. The reduction products were characterized using X-ray diffraction, scanning electronic microscope with energy disperse spectroscopy and optical microscopy analysis, respectively. The main phases in reduced products were reduced iron, rutile, reduced rutiles, pseudobrookite and Ti3O5. The reduction reaction proceeded topochemically and the reduction kinetics was discussed. It was found that the rate controlling step was the diffusion of hydrogen gas in the reduced layer. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | NATURAL ILMENITE ; FERROUS ORE ; OXIDATION ; HYDROGEN ; PREOXIDATION ; HEMATITE ; BEHAVIOR ; PELLETS ; CARBON |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000263805900003 |
| 公开日期 | 2013-12-11 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6783]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase & Complex Syst, Beijing 100080, Peoples R China 2.Peking Univ, Coll Engn, Dept Energy & Resources Engn, Beijing 100871, Peoples R China 3.Univ Tokyo, Grad Sch Frontier Sci, Dept Adv Mat Sci, Chiba 2778561, Japan |
| 推荐引用方式 GB/T 7714 | Wang, Yuming,Yuan, Zhangfu,Matsuura, Hiroyuki,et al. Reduction Extraction Kinetics of Titania and Iron from an Ilmenite by H-2-Ar Gas Mixtures[J]. ISIJ INTERNATIONAL,2009,49(2):164-170. |
| APA | Wang, Yuming,Yuan, Zhangfu,Matsuura, Hiroyuki,&Tsukihashi, Fumitaka.(2009).Reduction Extraction Kinetics of Titania and Iron from an Ilmenite by H-2-Ar Gas Mixtures.ISIJ INTERNATIONAL,49(2),164-170. |
| MLA | Wang, Yuming,et al."Reduction Extraction Kinetics of Titania and Iron from an Ilmenite by H-2-Ar Gas Mixtures".ISIJ INTERNATIONAL 49.2(2009):164-170. |
入库方式： OAI收割
来源：过程工程研究所
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