CAS OpenIR  > 研究所(批量导入)
Decomposition of Niobium Ore by Sodium Hydroxide Fusion Method
Yang, Xiu-Li1; Wang, Xiao-Hui2; Wei, Chang1; Zheng, Shi-Li2; Sun, Qing3
2013-02-01
Source PublicationMETALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
Volume44Issue:1Pages:45-52
AbstractThe decomposition kinetics of niobium ore in the NaOH system was studied experimentally. The results show that the reaction products are sodium metaniobate and sodium niobate formed by the reaction of pyrochlore with sodium hydroxide under roasting. The effects of temperature, particle size, and mass ratio of alkali-to-ore were studied. The conversion rate of niobium exceeded 99 pct after 20 minutes at 923 K (650 A degrees C) with a mass ratio of alkali-to-ore 1.2:1 and with initial particle size 75 to 106 mu m. The kinetic study indicates that the shrinking core model is applicable and the process is controlled by a chemical reaction. The activation energy was calculated to be 78.82 kJ mol(-1).
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS KeywordDISSOLUTION KINETICS
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000314909000008
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13473
Collection研究所(批量导入)
Affiliation1.Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China
2.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
3.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Yang, Xiu-Li,Wang, Xiao-Hui,Wei, Chang,et al. Decomposition of Niobium Ore by Sodium Hydroxide Fusion Method[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,2013,44(1):45-52.
APA Yang, Xiu-Li,Wang, Xiao-Hui,Wei, Chang,Zheng, Shi-Li,&Sun, Qing.(2013).Decomposition of Niobium Ore by Sodium Hydroxide Fusion Method.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,44(1),45-52.
MLA Yang, Xiu-Li,et al."Decomposition of Niobium Ore by Sodium Hydroxide Fusion Method".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE 44.1(2013):45-52.
Files in This Item:
File Name/Size DocType Version Access License
Decomposition of Nio(1293KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yang, Xiu-Li]'s Articles
[Wang, Xiao-Hui]'s Articles
[Wei, Chang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yang, Xiu-Li]'s Articles
[Wang, Xiao-Hui]'s Articles
[Wei, Chang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yang, Xiu-Li]'s Articles
[Wang, Xiao-Hui]'s Articles
[Wei, Chang]'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.