The Distribution of Boron between SiO2–CaO–MgO Slags and Liquid Silicon at Controlled Oxygen and Nitrogen Potentials

机译：在受控的氧和氮势下，SiO2-CaO-MgO炉渣与液态硅之间的硼分布

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In the refining of solar-grade silicon using slag treatment, boron dissolved in the silicon is rejected to a liquid oxide (slag) phase. In this study the partitioning of boron between SiO2-CaO-MgO slags and liquid silicon was examined at 1873 K over a range of slag compositions and gas compositions. It was found that the distribution of boron is dependent on the oxygen and nitrogen partial pressures as well as the slag composition. The highest partition ratios were achieved at 0.4 atm N2 / 0.6 atm CO and below 55 mass % SiO2. The concentration of MgO seems to have little impact on the partition ratio.

机译：在使用炉渣处理精制太阳能级硅时，溶解在硅中的硼被排到液态氧化物（炉渣）相中。在这项研究中，研究了硼在SiO2-CaO-MgO炉渣和液态硅之间的分配，其范围为炉渣成分和气体成分，范围为1873K。发现硼的分布取决于氧和氮的分压以及炉渣的成分。在0.4 atm N2 / 0.6 atm CO和低于55质量％SiO2的情况下实现了最高的分配比。 MgO的浓度似乎对分配比几乎没有影响。

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来源
《Ninth international conferece on molten slags, fluxes and salts》|2012年|1-13|共13页
会议地点 Beijing(CN)
作者
Jesse WHITE; Carl ALLERTZ; Karl FORWALD; Du SICHEN;
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作者单位

Elkem Technology, 4675 Kristiansand, Norway;

Department of Materials Science and Engineering, Royal Institute of Technology, 100 44 Stockholm, Sweden;

Elkem Technology, 4675 Kristiansand, Norway;

Department of Materials Science and Engineering, Royal Institute of Technology, 100 44 Stockholm, Sweden;

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原文格式 PDF
正文语种 eng
中图分类原材料;
关键词
silicon refining; slag treatment; boron; oxygen; nitrogen;

机译：硅精炼;渣处理;硼;氧;氮;

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专利

1. Effects of CaO, Al2O3 and MgO on liquidus temperatures of copper smelting and converting slags under controlled oxygen partial pressures [J] . Zhao B., Hayes P., Jak E. Journal of Mining and Metallurgy, Section B: Metallurgy . 2013,第2期

机译：CaO，Al2O3和MgO对可控氧分压下铜冶炼转渣液相线温度的影响
2. Effect of slag basicity and oxygen potential on the distribution of boron and phosphorus between slag and silicon [J] . Johnston M.D., Barati M. Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites . 2011,第3期

机译：矿渣碱度和氧势对矿渣与硅之间硼和磷分布的影响
3. Prediction model of sulphur distribution ratio between CaO-FeO-Fe2O3-Al2O3-P2O5 slags and liquid iron over large variation range of oxygen potential during secondary refining process of molten steel based on ion and molecule coexistence theory [J] . Yang X. M., Li J. Y., Zhang M., Ironmaking & Steelmaking . 2016,第1期

机译：基于离子和分子共存理论的钢水二次精炼过程中CaO-FeO-Fe2O3-Al2O3-P2O5渣与铁水在氧势大变化范围内硫分布比的预测模型
4. The Distribution of Boron between SiO2–CaO–MgO Slags and Liquid Silicon at Controlled Oxygen and Nitrogen Potentials [C] . Jesse WHITE, Carl ALLERTZ, Karl FORWALD, International conferece on molten slags, fluxes and salts . 2012

机译：SiO2-CaO-MgO炉渣与受控氧气和氮潜力液体之间的硼的分布
5. A kinetic study of beta silicon nitride grown in yttrium-magnesium-aluminum-silicon-oxygen-nitrogen liquids. [D] . Wang, Lingling. 2002

机译：在钇-镁-铝-硅-氧-氮液体中生长的β-氮化硅的动力学研究。
6. Effects of B2O3 on Melting Characteristics and Temperature-Dependent Viscosity of High-Basicity CaO–SiO2–FeOx–MgO Slag [O] . Junkai Chong, Yingying Shen, Peng Yang, 2020

机译：B2O3对高碱度CaO–SiO2–FeOx–MgO渣的熔融特性和随温度变化的粘度的影响
7. Distribution of boron between silicon and CaO-SiO2, MgO-SiO2,CaO-MgO-SiO2 and CaO-Al2O3-SiO2 slags at 1600°C [O] . Jakobsson, Lars Klemet 2013

机译：在1600°C下硅与CaO-siO2，mgO-siO2，CaO-mgO-siO2和CaO-al2O3-siO2物种之间的硼分布

The Distribution of Boron between SiO2–CaO–MgO Slags and Liquid Silicon at Controlled Oxygen and Nitrogen Potentials

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