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Reaction Mechanism and Kinetics of Boron Removal from Molten Silicon via CaO-SiO2-CaCl2 Slag Treatment and Ammonia Injection. / Chen, Hui; Yuan, Xizhi; Morita, Kazuki; Zhong, Yanjun; Ma, Xiaodong; Chen, Zhiyuan; Wang, Ye.

In: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, Vol. 50, No. 5, 2019, p. 2088-2094.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Chen, H, Yuan, X, Morita, K, Zhong, Y, Ma, X, Chen, Z & Wang, Y 2019, 'Reaction Mechanism and Kinetics of Boron Removal from Molten Silicon via CaO-SiO2-CaCl2 Slag Treatment and Ammonia Injection', Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, vol. 50, no. 5, pp. 2088-2094. https://doi.org/10.1007/s11663-019-01639-4

APA

Chen, H., Yuan, X., Morita, K., Zhong, Y., Ma, X., Chen, Z., & Wang, Y. (2019). Reaction Mechanism and Kinetics of Boron Removal from Molten Silicon via CaO-SiO2-CaCl2 Slag Treatment and Ammonia Injection. Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, 50(5), 2088-2094. https://doi.org/10.1007/s11663-019-01639-4

Vancouver

Chen H, Yuan X, Morita K, Zhong Y, Ma X, Chen Z et al. Reaction Mechanism and Kinetics of Boron Removal from Molten Silicon via CaO-SiO2-CaCl2 Slag Treatment and Ammonia Injection. Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science. 2019;50(5):2088-2094. https://doi.org/10.1007/s11663-019-01639-4

Author

Chen, Hui ; Yuan, Xizhi ; Morita, Kazuki ; Zhong, Yanjun ; Ma, Xiaodong ; Chen, Zhiyuan ; Wang, Ye. / Reaction Mechanism and Kinetics of Boron Removal from Molten Silicon via CaO-SiO2-CaCl2 Slag Treatment and Ammonia Injection. In: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science. 2019 ; Vol. 50, No. 5. pp. 2088-2094.

BibTeX

@article{31b97a5b6b9342c890328736729842f2,
title = "Reaction Mechanism and Kinetics of Boron Removal from Molten Silicon via CaO-SiO2-CaCl2 Slag Treatment and Ammonia Injection",
abstract = "To improve the boron-removal efficiency of metallurgical-grade silicon by increasing the reaction rate, a combined method with the 30 mol pct CaO-23.3 mol pct SiO2-46.7 mol pct CaCl2 slag treatment and ammonia injection at 1723 K to 1823 K was proposed. For 1 hour and at 1823 K, the maximum removal efficiency of boron was 98 pct, and the final boron concentration in silicon decreased to 1.5 ppmw by the present method without the introduction of the iron catalyst. A kinetic model was also established to clarify the reaction mechanism and rate-limiting steps of this complicated boron-removal process. In this model, the rate-limiting step is the mass transfer of boron oxide at the interface between the slag and silicon phase.",
author = "Hui Chen and Xizhi Yuan and Kazuki Morita and Yanjun Zhong and Xiaodong Ma and Zhiyuan Chen and Ye Wang",
year = "2019",
doi = "10.1007/s11663-019-01639-4",
language = "English",
volume = "50",
pages = "2088--2094",
journal = "Metallurgical and Materials Transactions B - Process Metallurgy and Materials Processing Science",
issn = "1073-5615",
publisher = "ASM International",
number = "5",

}

RIS

TY - JOUR

T1 - Reaction Mechanism and Kinetics of Boron Removal from Molten Silicon via CaO-SiO2-CaCl2 Slag Treatment and Ammonia Injection

AU - Chen, Hui

AU - Yuan, Xizhi

AU - Morita, Kazuki

AU - Zhong, Yanjun

AU - Ma, Xiaodong

AU - Chen, Zhiyuan

AU - Wang, Ye

PY - 2019

Y1 - 2019

N2 - To improve the boron-removal efficiency of metallurgical-grade silicon by increasing the reaction rate, a combined method with the 30 mol pct CaO-23.3 mol pct SiO2-46.7 mol pct CaCl2 slag treatment and ammonia injection at 1723 K to 1823 K was proposed. For 1 hour and at 1823 K, the maximum removal efficiency of boron was 98 pct, and the final boron concentration in silicon decreased to 1.5 ppmw by the present method without the introduction of the iron catalyst. A kinetic model was also established to clarify the reaction mechanism and rate-limiting steps of this complicated boron-removal process. In this model, the rate-limiting step is the mass transfer of boron oxide at the interface between the slag and silicon phase.

AB - To improve the boron-removal efficiency of metallurgical-grade silicon by increasing the reaction rate, a combined method with the 30 mol pct CaO-23.3 mol pct SiO2-46.7 mol pct CaCl2 slag treatment and ammonia injection at 1723 K to 1823 K was proposed. For 1 hour and at 1823 K, the maximum removal efficiency of boron was 98 pct, and the final boron concentration in silicon decreased to 1.5 ppmw by the present method without the introduction of the iron catalyst. A kinetic model was also established to clarify the reaction mechanism and rate-limiting steps of this complicated boron-removal process. In this model, the rate-limiting step is the mass transfer of boron oxide at the interface between the slag and silicon phase.

UR - http://www.scopus.com/inward/record.url?scp=85069714269&partnerID=8YFLogxK

U2 - 10.1007/s11663-019-01639-4

DO - 10.1007/s11663-019-01639-4

M3 - Article

AN - SCOPUS:85069714269

VL - 50

SP - 2088

EP - 2094

JO - Metallurgical and Materials Transactions B - Process Metallurgy and Materials Processing Science

JF - Metallurgical and Materials Transactions B - Process Metallurgy and Materials Processing Science

SN - 1073-5615

IS - 5

ER -

ID: 56317921