CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Influence of Silica on the Lime-Free Roasting of Chromium-Containing Slag
Yu, Kai-Ping1,2,3; Chen, Bo1; Zhang, Hong-Ling2,3; Liu, Yuan-Yue2,3,5; Duan, Shao-Yong2,3; Xu, Hong-Bin2,3; Zhang, Yi2,3,4
2016-02-01
Source PublicationMETALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
ISSN1073-5615
Volume47Issue:1Pages:207-215
AbstractThe evolution of silica during the lime-free roasting and their roles were investigated using chromium-containing slag with high content of ferric oxide and silica. The siliceous salt phases were analyzed by means of X-ray diffraction, scanning electron microscope, and energy-dispersive X-ray spectroscopy. The reaction rule involved with silicon-containing compounds in the roasting process was also discussed. The results showed that both oxidation of Cr2O3 and leaching of Na2CrO4 were influenced by the siliceous salts. It suggested that roasting temperature and the amount of alkali act as important factors for the phase transformation of silicon. NaFe(SiO3)(2) was formed in the temperature which is best for the production of Na2CrO4, while excess amount of alkali could decompose acmite into NaFeO2 and Na2SiO3. It was observed that a large amount of insoluble NaFe(SiO3)(2) took shape during the lime-free roasting when the temperature was above 1273 K (1000 A degrees C). The extracting rate of chromium from chromium-containing slag roasted at 1373 K (1100 A degrees C) was only 29.99 pct and almost no silicon was leached out.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1007/s11663-015-0485-9
Indexed BySCI
Language英语
WOS KeywordMINERALS
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Basic Research Program (973 Program) of China(2013CB632600) ; National High-tech Research and Development Program of China(2011AA060702) ; National Natural Science Foundation of China(11204304 ; 21376251)
WOS IDWOS:000368692300024
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20597
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Fuzhou Univ, Coll Zijin Min, Fuzhou 350108, Fujian, Peoples R China
2.Chinese Acad Agr Sci, Inst Proc Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
4.Chinese Acad Engn, Beijing, Peoples R China
5.Hebei Univ Sci & Technol, Sch Chem Engn & Technol, Shijiazhuang 050018, Hebei, Peoples R China
Recommended Citation
GB/T 7714
Yu, Kai-Ping,Chen, Bo,Zhang, Hong-Ling,et al. Influence of Silica on the Lime-Free Roasting of Chromium-Containing Slag[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,2016,47(1):207-215.
APA Yu, Kai-Ping.,Chen, Bo.,Zhang, Hong-Ling.,Liu, Yuan-Yue.,Duan, Shao-Yong.,...&Zhang, Yi.(2016).Influence of Silica on the Lime-Free Roasting of Chromium-Containing Slag.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,47(1),207-215.
MLA Yu, Kai-Ping,et al."Influence of Silica on the Lime-Free Roasting of Chromium-Containing Slag".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE 47.1(2016):207-215.
Files in This Item:
File Name/Size DocType Version Access License
Influence of Silica (2584KB)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
[Yu, Kai-Ping]'s Articles
[Chen, Bo]'s Articles
[Zhang, Hong-Ling]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yu, Kai-Ping]'s Articles
[Chen, Bo]'s Articles
[Zhang, Hong-Ling]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yu, Kai-Ping]'s Articles
[Chen, Bo]'s Articles
[Zhang, Hong-Ling]'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.