Oxygen Equilibrium between Liquid Iron and CaO-saturated Fe<SUB><I>t</I></SUB>O-CaO-CaF<SUB>2</SUB>-Slags

• HARA Shigeta

  Faculty of Engineering, Osaka University

• TOKONAMI Tetsuji

  Graduate School, Osaka University, Now Kobe Steel Ltd.

• OGINO Kazumi

  Faculty of Engineering, Osaka University

Bibliographic Information

Other Title

• 石灰飽和Fe<SUB><I>t</I></SUB>O-CaO-CaF<SUB>2</SUB>系スラグと溶鉄間の酸素の平衡
• 石灰飽和FetO-CaO-CaF2系スラグと溶鉄間の酸素の平衡
• セッカイ ホウワ FetO CaO CaF2ケイ スラグ ト ヨウテツカン ノ

Abstract

Equilibrium between molten iron and molten Fe_tO-CaO-CaF₂ slags was established at 1 600°C under a CaO-saturated condition. The results are summarized as follows, <BR>(1) Oxygen content in liquid iron equilibrated with CaO-saturated iron oxide melt is given by the following equation.<BR>log[% O]=-5240/T+1.743 (1848<T/K<1933)<BR>(2) Solubility line of CaO in Fe_tO-CaO-CaF₂ melts at 1600°C equilibrated with liquid iron is similar to that saturated with the slag equilibrated with solid iron at 1 450°C reported by HAWKINS and DAVIES.<BR>(3) Addition of CaF₂ to Fe_t-CaO_sat. melts decreased the oxygen contents in liquid iron, while the activity coefficient of Fe_tO in the melts, γ_Fe<SUB>tO</SUB> incraesed with increase of CaF₂ content.

Journal

• Tetsu-to-Hagane

  Tetsu-to-Hagane 78 (4), 551-556, 1992

  The Iron and Steel Institute of Japan

Keywords

• CaO-saturated slag
• Fe<SUB>t</SUB>O-CaO-CaF<SUB>2</SUB> melts
• equiliblium
• CaO solubility
• molten iron
• oxygen distribution

Details

• CRID: 1390001205151822976
• NII Article ID: 110001481101
• NII Book ID: AN00151251
• DOI: 10.2355/tetsutohagane1955.78.4_551
• ISSN: 18832954
• ISSN: 00211575
• NDL BIB ID: 3759640
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3759640
• Web Site: https://www.jstage.jst.go.jp/article/tetsutohagane1955/78/4/78_4_551/_pdf
• Data Source:
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  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed