高炭素フェロマンガン粒の還元脱りん

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タイトル別名
  • Dephosphorization of Granular High-carbon Ferromanganese in Reducing Conditions
  • コウ タンソ フェロマンガンリュウ ノ カンゲン ダツリン

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抄録

Granular high-carbon ferromanganese was dipped into molten Ca-CaCl2, Mg-MgCl2 and Ca-NaCl flux under argon atmosphere and dephosphorization was investigated in a laboratory scale test.<BR>1. Dephosphorization of more than 90% could be achieved with all kinds of flux investigated, by the treatment at 10001050°C for 2 h.<BR>2. It is considered that the high dephosphorization rate was obtained by the penetration of the flux into the high-carbon ferromanganese granules through micro-cracks, and the penetration shortened the diffusion distance and increased the interfacial area for dephosphorization. In addition, highly segregated phosphorus in granules accelerated the dephosphorization.

収録刊行物

  • 鉄と鋼

    鉄と鋼 75 (7), 1132-1138, 1989

    一般社団法人 日本鉄鋼協会

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