CAS OpenIR
Thermodynamic analysis and experimental verification for silicon recovery from the diamond wire saw silicon powder by vacuum carbothermal reduction
Yang, Shicong1; Ma, Wenhui1,2,3; Wei, Kuixian1,2; Xie, Keqiang1,2; Wang, Zhi4
2019-12-01
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume228Pages:10
AbstractRecovering silicon from waste material is profoundly significant in terms of making profit and encouraging development within the photovoltaic manufacturing industry. Eliminating oxygen is essential for the preparation of high purity silicon. However, a substantial amount of oxygen exists in diamond wire saw silicon powder (DWSSP), creating a barrier for the effective silicon recovery caused by a nonnegligible silicon loss. In this paper, amorphous silicon dioxide and the Si core - SiO2 shell structure was systematically characterized and confirmed. A thermodynamic calculation was then carried out to analyze the reduction reaction probability of silicon dioxide by vacuum carbothermal reduction. The results indicated that the reduction reaction could occur under the vacuum condition with lower temperature, while it could not under that of the atmospheric condition. Further, experiments were conducted to verify the reliability of the thermodynamic analysis, which are keeping in good agreement with thermodynamic results. Finally, the results confirmed that the vacuum carbothermal reduction method is a feasible alternative for silicon recovery from the DWSSP. This research provides contributions to understanding the recovery of silicon resources from DWSSP with the vacuum process, making it competitive with existing silicon recovery methods.
KeywordDiamond wire saw silicon powder Silicon recovery Vacuum carbothermal reduction Thermodynamic analysis Experimental verification
DOI10.1016/j.seppur.2019.115754
Language英语
WOS KeywordTHERMAL-EXPANSION COEFFICIENT ; KERF-LOSS SILICON ; WASTE ; PHOTOVOLTAICS ; TEMPERATURE ; COMPOSITES ; TRANSITION ; MANAGEMENT ; CARBIDE
Funding ProjectNational Key R&D Program of China[2018YFC1901801] ; National Key R&D Program of China[2018YFC1901805] ; Reserve Talents of Young and Middle-aged Academic and Technical Leaders in Yunnan Province[2018HB009] ; Program for Innovative ResearchTeam in University of Ministry of Education of China[IRT-17R48]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Key R&D Program of China ; Reserve Talents of Young and Middle-aged Academic and Technical Leaders in Yunnan Province ; Program for Innovative ResearchTeam in University of Ministry of Education of China
WOS IDWOS:000478709000005
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30376
Collection中国科学院过程工程研究所
Corresponding AuthorWei, Kuixian
Affiliation1.Kunming Univ Sci & Technol, Fac Met & Energy Engn, Natl Engn Lab Vacuum Met, Kunming 650093, Yunnan, Peoples R China
2.Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cl, Kunming 650093, Yunnan, Peoples R China
3.Innovat Ctr Yuruum Prov, Silicon Mat Ind Res Inst, Kunming 650093, Yunnan, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yang, Shicong,Ma, Wenhui,Wei, Kuixian,et al. Thermodynamic analysis and experimental verification for silicon recovery from the diamond wire saw silicon powder by vacuum carbothermal reduction[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2019,228:10.
APA Yang, Shicong,Ma, Wenhui,Wei, Kuixian,Xie, Keqiang,&Wang, Zhi.(2019).Thermodynamic analysis and experimental verification for silicon recovery from the diamond wire saw silicon powder by vacuum carbothermal reduction.SEPARATION AND PURIFICATION TECHNOLOGY,228,10.
MLA Yang, Shicong,et al."Thermodynamic analysis and experimental verification for silicon recovery from the diamond wire saw silicon powder by vacuum carbothermal reduction".SEPARATION AND PURIFICATION TECHNOLOGY 228(2019):10.
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
[Yang, Shicong]'s Articles
[Ma, Wenhui]'s Articles
[Wei, Kuixian]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yang, Shicong]'s Articles
[Ma, Wenhui]'s Articles
[Wei, Kuixian]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yang, Shicong]'s Articles
[Ma, Wenhui]'s Articles
[Wei, Kuixian]'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.