Thermodynamic analysis and experimental verification for silicon recovery from the diamond wire saw silicon powder by vacuum carbothermal reduction
文献类型：期刊论文
| 作者 | Yang, Shicong1; Ma, Wenhui1,2,3; Wei, Kuixian1,2; Xie, Keqiang1,2; Wang, Zhi4 |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 228页码:10 |
| 关键词 | Diamond wire saw silicon powder Silicon recovery Vacuum carbothermal reduction Thermodynamic analysis Experimental verification |
| ISSN号 | 1383-5866 |
| DOI | 10.1016/j.seppur.2019.115754 |
| 英文摘要 | Recovering 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. |
| WOS关键词 | THERMAL-EXPANSION COEFFICIENT ; KERF-LOSS SILICON ; WASTE ; PHOTOVOLTAICS ; TEMPERATURE ; COMPOSITES ; TRANSITION ; MANAGEMENT ; CARBIDE |
| 资助项目 | National 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研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000478709000005 |
| 出版者 | ELSEVIER |
| 资助机构 | National 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 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/30375]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wei, Kuixian |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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