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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2020.07.023
|2 doi
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|a pubmed25n1042.xml
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|a (DE-627)NLM312834535
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|a (NLM)32707481
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|a (PII)S0956-053X(20)30389-5
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Li, Jingwei
|e verfasserin
|4 aut
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|a Recovery of high purity Si from kerf-loss Si slurry waste by flotation method using PEA collector
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 11.08.2020
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|a Date Revised 09.01.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2020 Elsevier Ltd. All rights reserved.
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|a Separation and recovery of high-purity Si powder from kerf-loss Si slurry waste is a critical challenge for the photovoltaic industry. A green surfactant poly (propylene glycol) bis (2-aminopropyl ether) (PEA) was employed as a collector to facilitate the separation of Si and SiC from kerf-loss Si waste during flotation process. Single flotation tests of Si and SiC were conducted using 5 × 10-6 mol/L PEA, respectively. The separation efficiencies of Si and SiC in conjunction with PEA adsorption mechanism were investigated. It was found that the maximum recoveries rate of SiC and Si were 90.59% (pH 9.00) and 80.93% (pH 1.96), respectively. Furthermore, the maximum Si grade was determined as 92.31% at pH 8.95 for the sinking part of the mixture generating excellent floatability and selectivity. Zeta potential measurements, FT-IR spectra, and XPS analyses demonstrated that PEA was present on the surface of Si and SiC through electrostatic and hydrogen-bond interactions. The adsorption mechanism was explained based on the results. This research provides an efficient and environmentally friendly route for the separation and recovery of high purity silicon from kerf-loss Si waste
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|a Journal Article
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|a Adsorption mechanism
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|a Flotation separation
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|a Kerf-loss silicon waste
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|a Poly (propylene glycol) bis (2-aminopropyl ether)
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|a Si recovery
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|a Silicon
|2 NLM
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|a Z4152N8IUI
|2 NLM
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| 700 |
1 |
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|a Lin, Yinhe
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shi, Jian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ban, Boyuan
|e verfasserin
|4 aut
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| 700 |
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|a Sun, Jifei
|e verfasserin
|4 aut
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1 |
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|a Ma, Yong
|e verfasserin
|4 aut
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|a Wang, Fanmao
|e verfasserin
|4 aut
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|a Lv, Wei
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Jian
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 115(2020) vom: 15. Sept., Seite 1-7
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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| 773 |
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|g volume:115
|g year:2020
|g day:15
|g month:09
|g pages:1-7
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|u http://dx.doi.org/10.1016/j.wasman.2020.07.023
|3 Volltext
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