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首页> 外文期刊>Metallurgical and Materials Transactions B >A new experimental technique for determinations of the activities of P2O5 and FexO—the system CaO-P2O5-FexO
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A new experimental technique for determinations of the activities of P2O5 and FexO—the system CaO-P2O5-FexO

机译：测定P2 O5 和Fex O活性的新实验技术-CaO-P2 O5 -Fex O系统

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摘要

An experimental technique was applied for simultaneous determinations of the activities of P2O5 and FexO in slags. With this technique, phosphorus-containing liquid copper was heated inside an iron crucible at temperatures below 1600 K. When copper is melted, the iron crucible dissolves into liquid copper, to a small extent, to form ternary {Cu-Fe-P} liquid alloy, while 〈Cu-Fe-P〉 solid solutions are formed on the inner wall of the iron crucible. Slags containing tri-calcium phosphate were then brought into equilibrium with {Cu-Fe-P} liquid alloy. By measuring the equilibrium oxygen partial pressures with the aid of a zirconia electrolyte cell, activities of P2O5 and FexO were obtainable. Between 1553 and 1593 K, the P2O5 activities could be expressed as $$log a_{P_2 O_5 } = 1.78 - 2.85 times 10^4 /(T/K)$$
机译：同时采用实验技术同时测定了炉渣中P2 O5 和Fex O的活性。用这种技术，将含磷的液态铜在低于1600 K的温度下在铁坩埚内加热。当铜熔化时，铁坩埚少量溶解到液态铜中，形成三元{Cu-Fe-P}液体合金，而固溶体在铁坩埚的内壁上形成。然后使含磷酸三钙的炉渣与{Cu-Fe-P}液态合金达到平衡。通过利用氧化锆电解质电池测量平衡氧分压，可以获得P2 O5 和Fex O的活性。在1553和1593 K之间，P2 O5 活动可以表示为$$ log a_ {P_2 O_5} = 1.78-2.85乘以10 ^ 4 /（T / K）$$

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  • 来源
    《Metallurgical and Materials Transactions B》 |2005年第1期|43-51|共9页
  • 作者

    Y. Kaida; M. Hasegawa; M. Iwase; Y. Kikuchi; K. Wakimoto;

  • 作者单位

    Ferrous Metallurgy Research Group Department of Energy Science Kyoto University 606-8501 Kyoto Japan;

    Ferrous Metallurgy Research Group Department of Energy Science Kyoto University 606-8501 Kyoto Japan;

    Ferrous Metallurgy Research Group Department of Energy Science Kyoto University 606-8501 Kyoto Japan;

    the Steelmaking Research Department Research Center JFE-Steel Corporation 721-8510 Hiroshima Japan;

    the Environmental Solution Center JFE-Holdings 101-8202 Tokyo Japan;

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