CAS OpenIR
Novel Reaction Media of Na2CO3-CaO for Silicon Extraction and Aluminum Removal from Diamond Wire Saw Silicon Powder by Roasting-Smelting Process
Yang, Shicong1; Wan, Xiaohan1; Wei, Kuixian1,2; Ma, Wenhui1,2,3; Wang, Zhi4
2020-03-16
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume8Issue:10Pages:4146-4157
AbstractExploring a sustainable process to dispose diamond wire saw silicon powder (DWSSP) waste produced in the solar crystal silicon wafering process is a research field with significant theoretical research value and industrial engineering application. The current consensus on silicon extraction from DWSSP is that SiO2 oxide layer digestion and high-content Al removal are two main factors governing the yield and purity of silicon. To solve these problems, a novelty reaction media of Na2CO3-CaO in the induction furnace roasting-smelting process for silicon extraction and aluminum removal from DWSSP was proposed. The mechanisms of SiO2 digestion and Al removal during the roasting-smelting process were investigated by thermodynamic analysis, mineral transformation, and roasting-smelting experimental investigation. The obtained silicon with a Al removal efficiency of 48.44% and silicon yield of 55.5% was improved from 89.125% to 99.31% under the furnace feed mass composition of 38.4 g Na2CO3, 5.1 g CaO, and 300 g DWSSP, and holding time for 2 h in 1823 K. The novelty reaction media of Na2CO3-CaO is expected to achieve efficient silicon extraction and aluminum removal from DWSSP. This process provides an alternative choice for the commercial production of silicon alloy, silicone, and high purity silicon preparation with a process that is low in cost, is easy to operate, exhibits short flow, and can be sustainably manufactured.
KeywordDiamond wire saw silicon powder Silicon extraction Aluminum removal Na2CO3-CaO reaction media hicluction furnace roasting-smelting
DOI10.1021/acssuschemeng.9b06884
Language英语
WOS KeywordCOAL FLY-ASH ; THERMAL-EXPANSION COEFFICIENT ; HIGH-PURITY SILICON ; KERF-LOSS ; HYDROGEN DESORPTION ; SLURRY WASTE ; ACTIVATION ; ELIMINATION ; REDUCTION ; BORON
Funding ProjectNational Key R&D Program of China[2018YFC1901805] ; National Key R&D Program of China[2018YFC1901801] ; Major Science and Technology Projects in Yunnan Province[2019ZE007] ; Reserve Talents of Young and Middle-aged Academic and Technical Leaders in Yunnan Province[2018HB009] ; National Natural Science Foundation of China[51904134] ; Program for Innovative Research Team in University of Ministry Education of China[IRT-17R48]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical
Funding OrganizationNational Key R&D Program of China ; Major Science and Technology Projects in Yunnan Province ; Reserve Talents of Young and Middle-aged Academic and Technical Leaders in Yunnan Province ; National Natural Science Foundation of China ; Program for Innovative Research Team in University of Ministry Education of China
WOS IDWOS:000526352300015
PublisherAMER CHEMICAL SOC
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/40324
Collection中国科学院过程工程研究所
Corresponding AuthorWei, Kuixian; Ma, Wenhui
Affiliation1.Kunming Univ Sci & Technol, Fac Met & Energy Engn, Natl Engn Lab Vacuum Met, Xuefu Rd, Kunming 650093, Yunnan, Peoples R China
2.Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cl, Xuefu Rd, Kunming 650093, Yunnan, Peoples R China
3.Silicon Mat Ind Res Inst Innovat Ctr Yunnan Prov, Kunming 650093, Yunnan, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yang, Shicong,Wan, Xiaohan,Wei, Kuixian,et al. Novel Reaction Media of Na2CO3-CaO for Silicon Extraction and Aluminum Removal from Diamond Wire Saw Silicon Powder by Roasting-Smelting Process[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2020,8(10):4146-4157.
APA Yang, Shicong,Wan, Xiaohan,Wei, Kuixian,Ma, Wenhui,&Wang, Zhi.(2020).Novel Reaction Media of Na2CO3-CaO for Silicon Extraction and Aluminum Removal from Diamond Wire Saw Silicon Powder by Roasting-Smelting Process.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,8(10),4146-4157.
MLA Yang, Shicong,et al."Novel Reaction Media of Na2CO3-CaO for Silicon Extraction and Aluminum Removal from Diamond Wire Saw Silicon Powder by Roasting-Smelting Process".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 8.10(2020):4146-4157.
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