CAS OpenIR
Study of recycling blast furnace dust by magnetization roasting with straw charcoal as reductant
Ju, Jinrong1,2,3; Feng, Yali1; Li, Haoran2,3; Zhang, Qian1
2022
Source PublicationPHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING
ISSN1643-1049
Volume58Issue:3Pages:14
AbstractBlast furnace dust generated in the iron-making process not only contains a large amount of iron but also the widely used non-ferrous metal zinc, which is classified as hazardous waste. In this study, the process of recycling blast furnace dust by magnetization roasting with straw charcoal as the reductant is proposed, and the mechanism of magnetization roasting was explored through thermodynamic analysis, X-ray diffraction analysis, and thermogravimetric analysis. The results for the thermodynamic analysis showed that the reduction of blast furnace dust by the straw charcoal was feasible theoretically. The increase in the roasting temperature not only promoted the reduction of hematite (Fe2O3) but also reduced zinc ferrite (ZnFe2O4) to Fe3O4 and ZnO. The results showed that almost all Fe2O3 and ZnFe2O4 in the blast furnace dust were reduced to Fe3O4 and ZnO under the conditions of straw charcoal amount of 6%, the roasting temperature of 750 degrees C, and the roasting time of 60 min. Then, the iron concentrate with the iron recovery of 85.61% and an iron grade of 63.50% was obtained by the magnetic separation. Meanwhile, the grade of zinc in the iron concentrate was 0.19%. Finally, the flowsheet of simultaneously recovering iron and zinc from the blast furnace dust was put forward, which could realize that 85.61% of iron was recovered and 92.57% of zinc was extracted into the solution.
Keywordblast furnace dust straw charcoal magnetization roasting hematite zinc ferrite
DOI10.37190/ppmp/149265
Language英语
WOS KeywordZINC ; IRON ; OPTIMIZATION ; MECHANISM ; RECOVERY ; SLUDGE
Funding ProjectChina Ocean Mineral Resources RD Association[JS-KTHT-2019-01]
WOS Research AreaChemistry ; Mining & Mineral Processing
WOS SubjectChemistry, Physical ; Mining & Mineral Processing
Funding OrganizationChina Ocean Mineral Resources RD Association
WOS IDWOS:000791552800001
PublisherOFICYNA WYDAWNICZA POLITECHNIKI WROCLAWSKIEJ
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/53123
Collection中国科学院过程工程研究所
Corresponding AuthorFeng, Yali; Li, Haoran
Affiliation1.Univ Sci & Technol Beijing, Civil & Resource Engn Sch, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Biochem Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ju, Jinrong,Feng, Yali,Li, Haoran,et al. Study of recycling blast furnace dust by magnetization roasting with straw charcoal as reductant[J]. PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING,2022,58(3):14.
APA Ju, Jinrong,Feng, Yali,Li, Haoran,&Zhang, Qian.(2022).Study of recycling blast furnace dust by magnetization roasting with straw charcoal as reductant.PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING,58(3),14.
MLA Ju, Jinrong,et al."Study of recycling blast furnace dust by magnetization roasting with straw charcoal as reductant".PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING 58.3(2022):14.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ju, Jinrong]'s Articles
[Feng, Yali]'s Articles
[Li, Haoran]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ju, Jinrong]'s Articles
[Feng, Yali]'s Articles
[Li, Haoran]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ju, Jinrong]'s Articles
[Feng, Yali]'s Articles
[Li, Haoran]'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.