Kinetics of carbothermic reduction of MnO2 and catalytic effect of La2O3
文献类型：期刊论文
| 作者 | Tang, HQ; Guo, ZC; Guo, XM; Zhang, SB |
| 刊名 | JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
 |
| 出版日期 | 2002-02-01 |
| 卷号 | 9期号:1页码:40-44 |
| 关键词 | lanthanum oxide carbothermic reduction catalytic effect |
| ISSN号 | 1005-8850 |
| 其他题名 | J. Univ. Sci. Technol. Beijing |
| 中文摘要 | Kinetics of carbothermic reduction of manganese oxide and the catalytic effect of La2O3 on the reduction have been studied by the measurement of mass loss in N-2 atmosphere at different temperatures and followed by SEM analysis. It is concluded that the kinetics of carbothermic reduction of manganese oxide is divided into three stages: gas diffusion controlling stage, carbon gasification controlling stage and solid state diffusion controlling stage. La2O3 has catalytic effect on the reduction. The catalytic effect of La2O3 increases with the added amount of La2O3. SEM analysis shows that the catalytic mechanism is that La2O3 promotes the transfer of oxygen ions so that carbon gasifying is catalyzed and thus carbothermic reduction of MnO2 is catalyzed. |
| 英文摘要 | Kinetics of carbothermic reduction of manganese oxide and the catalytic effect of La2O3 on the reduction have been studied by the measurement of mass loss in N-2 atmosphere at different temperatures and followed by SEM analysis. It is concluded that the kinetics of carbothermic reduction of manganese oxide is divided into three stages: gas diffusion controlling stage, carbon gasification controlling stage and solid state diffusion controlling stage. La2O3 has catalytic effect on the reduction. The catalytic effect of La2O3 increases with the added amount of La2O3. SEM analysis shows that the catalytic mechanism is that La2O3 promotes the transfer of oxygen ions so that carbon gasifying is catalyzed and thus carbothermic reduction of MnO2 is catalyzed. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| 研究领域[WOS] | Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| 关键词[WOS] | MIXED PELLETS ; MANGANESE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000174214800010 |
| 公开日期 | 2013-11-12 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5647]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China 2.Univ Sci & Technol Beijing, Met Sch, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, HQ,Guo, ZC,Guo, XM,et al. Kinetics of carbothermic reduction of MnO2 and catalytic effect of La2O3[J]. JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING,2002,9(1):40-44. |
| APA | Tang, HQ,Guo, ZC,Guo, XM,&Zhang, SB.(2002).Kinetics of carbothermic reduction of MnO2 and catalytic effect of La2O3.JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING,9(1),40-44. |
| MLA | Tang, HQ,et al."Kinetics of carbothermic reduction of MnO2 and catalytic effect of La2O3".JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING 9.1(2002):40-44. |
入库方式： OAI收割
来源：过程工程研究所
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