Copper Distribution between Molten FeS-NaS0.5 Flux and Carbon Saturated Iron Melt.

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概要

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• Copper distribution between FeS-NaS0.5 flux and carbon saturated liquid iron has been studied at 1 673 K. Copper distribution ratio, LCu=(mass%Cu) flux/[mass%Cu]iron, was about 9 when FeS only was used as sulfide flux. The addition of NaS0.5 to FeS increased the copper distribution ratio. The <I>L</I>Cu showed the maximum value of about 24, at around XNaS0.5=0.4, and became nearly constant at the range of higher NaS0.5 content than 0.4 of NaS0.5. The addition of NaS0.5 also lowered sulfur content in liquid iron from 1.9 Mass% at XNaS0.5=0 to 0.04 mass% at XNaS0.5=0.8. CuS0.5 dissolved in flux decreased LCu at high concentration range of NaS0.5.In order to discuss the effect of NaS0.5 and CuS0.5 on the copper distribution ratio, the activity coefficient of CuS0.5 in flux was evaluated. It was found that NaS0.5 decreased the activity coefficient of CuS0.5 in flux, so that the LCu increased in spite of the significant decrease of sulfur potential in the system by the addition of NaS0.5.

• The Iron and Steel Institute of Japanの論文

著者

• Ban-ya Shiro

  Faculty Of Engineering Tohoku University

• Nagasaka Tetsuya

  Faculty of Engineering, Tohoku University

• Wang Chao

  Research Student, Research Institute of Mineral Dressing and Metallurgy, Tohoku University

• Hino Mitsutaka

  Faculty of Engineering, Tohoku University

関連論文

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• Equilibrium between Yttrium and Oxygen in Liquid Iron and Nickel
• Sulphide Capacities of CaO-Al2O3-MgO and CaO-Al2O3-SiO2 Slags.
• Activities of Tin and Antimony in Liquid Fe-S Alloy Saturated with Carbon.
• Phase Equilibria of Liquid Fe-S-C Ternary System.
• Copper Distribution between Molten FeS-NaS0.5 Flux and Carbon Saturated Iron Melt.
• Copper Distribution between FeS-Alkaline or -Alkaline Earth Metal Sulfide Fluxes and Carbon Saturated Iron Melt.

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