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首页> 外文期刊>ISIJ international >Sulphide Capacity of CaO-SiO_2-Al_2O_3-MgO System Relevant to Low MgO Blast Furnace Slags
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Sulphide Capacity of CaO-SiO_2-Al_2O_3-MgO System Relevant to Low MgO Blast Furnace Slags

机译：CaO-SiO_2-Al_2O_3-MgO体系与低MgO高炉渣相关的硫化物容量

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摘要

Desulphurization has been of more importance to control the quality of hot metal in blast furnace (BF) with increasing utilization of low-grade iron ores and poor-quality fuels as well as reducing the slag volume by decreasing MgO concentration. To improve performance with better understanding the desulphurization in BFs, sulphide capacities of CaO-SiO_2-Al_2O_3-MgO system relevant to BF slags were experimentally determined using gas-slag equilibration technique. The results show that sulphide capacity increases with the increase in temperature, CaO/SiO_2 weight ratio and MgO at fixed Al_2O_3 concentration. The experimental results were further compared with sulphide capacity obtained from available models in open literature. In addition, the equilibrium sulphur partition ratio between slag and hot metal was calculated from sulphide capacity with oxygen activity in the melt, which is also compared with industrial data and the laboratory experiments of kinetic desulphurization of hot metal.
机译：随着低品位铁矿石和劣质燃料的利用率提高以及通过降低MgO浓度降低炉渣量，脱硫对于控制高炉中高炉铁水的质量尤为重要。为了提高性能，更好地了解高炉中的脱硫，使用气渣平衡技术实验确定了与高炉渣相关的CaO-SiO_2-Al_2O_3-MgO体系的硫化能力。结果表明，在固定的Al_2O_3浓度下，硫化物容量随温度，CaO / SiO_2重量比和MgO的增加而增加。将实验结果与公开文献中从可用模型获得的硫化物容量进行了比较。此外，还根据熔体中含氧活性的硫化物容量计算了炉渣与铁水之间的平衡硫分配比，并将其与工业数据和铁水动力学脱硫的实验室实验进行了比较。

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  • 来源
    《ISIJ international》 |2016年第12期|2126-2131|共6页
  • 作者

    Xiaodong MA; Mao CHEN; Haifa XU; Jinming ZHU; Geoff WANG; Baojun ZHAO;

  • 作者单位

    School of Chemical Engineering, The University of Queensland, Brisbane, Qld 4072, Australia;

    School of Chemical Engineering, The University of Queensland, Brisbane, Qld 4072, Australia;

    Baoshan Iron and Steel (Baosteel) Co. Ltd., Shanghai, 201900 China;

    Baoshan Iron and Steel (Baosteel) Co. Ltd., Shanghai, 201900 China;

    School of Chemical Engineering, The University of Queensland, Brisbane, Qld 4072, Australia;

    School of Chemical Engineering, The University of Queensland, Brisbane, Qld 4072, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    blast furnace (BF); slag; gas-slag equilibration; sulphide capacity;

    机译：高炉（BF）;矿渣;气渣平衡硫化能力;

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