The Activity of Calcium in Calcium-Calcium Halide Fluxes.

• Ogasawara Tomoyasu

  Graduate Student, Department of Metallurgy, The University of Tokyo

• Mori Ken-ichi

  Graduate Student, Department of Metallurgy, The University of Tokyo

• Tominaga Teruo

  Graduate Student, Department of Metallurgy, The University of Tokyo

• Tsukihashi Fumitaka

  Department of Metallurgy, Graduate School of Engineering, The University of Tokyo

• Sano Nobuo

  Department of Metallurgy, Graduate School of Engineering, The University of Tokyo

抄録

The activities of calcium in the CaO_satd.-Ca-CaX₂ fluxes (X: Cl, Br, I) were measured as a function of the calcium composition at 1 473 K by equilibrating these fluxes with a solid zirconium plate. The activities decreased in the order CaCl₂, Cal₂ and CaBr₂ at the same calcium fraction of these fluxes. The observed activities are compared with those estimated using binary phase diagrams of the Ca-CaX₂ system. The possibility of the removal of phosphorus and the tramp elements such as arsenic, antimony, bismuth, lead and tin from carbon saturated iron using calcium-calcium halide fluxes is discussed.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 36 (Suppl), S30-S33, 1996

  一般社団法人 日本鉄鋼協会

キーワード

• thermodynamics
• activity
• calcium
• calcium halide
• steelmaking
• tramp element
• phosphorus

詳細情報

• CRID: 1390001206453029120
• NII論文ID: 10015620413
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.36.suppl_s30
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/36/Suppl/36_Suppl_S30/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可