CAS OpenIR  > 研究所(批量导入)
Kinetics of carbothermic reduction of MnO2 and catalytic effect of La2O3
Alternative TitleJ. Univ. Sci. Technol. Beijing
Tang, HQ; Guo, ZC; Guo, XM; Zhang, SB
2002-02-01
Source PublicationJOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
ISSN1005-8850
Volume9Issue:1Pages:40-44
AbstractKinetics 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.; 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.
KeywordLanthanum Oxide Carbothermic Reduction Catalytic Effect
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS KeywordMIXED PELLETS ; MANGANESE
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS IDWOS:000174214800010
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5647
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
2.Univ Sci & Technol Beijing, Met Sch, Beijing 100083, Peoples R China
Recommended Citation
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.
Files in This Item:
File Name/Size DocType Version Access License
KineticsofCarbot_省略_(1012KB) 限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Tang, HQ]'s Articles
[Guo, ZC]'s Articles
[Guo, XM]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tang, HQ]'s Articles
[Guo, ZC]'s Articles
[Guo, XM]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tang, HQ]'s Articles
[Guo, ZC]'s Articles
[Guo, XM]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.