Formation of Cementite from Titanomagnetite Ore

• Longbottom Raymond James

  School of Materials Science and Engineering, University of New South Wales

• Ostrovski Oleg

  School of Materials Science and Engineering, University of New South Wales

• Park Eungyeul

  School of Materials Science and Engineering, University of New South Wales

抄録

This paper examines the formation of cementite in reduction of titanomagnetite ore by methane-containing gas. The reduction of titanomagnetite ore (New Zealand ironsand) by hydrogen–methane–argon gas mixtures was investigated from 600 to 1100°C. Iron oxides were reduced by hydrogen to metallic iron, which was carburised by methane to form cementite. The reduction rate increased with increasing hydrogen content in the reducing gas, while the methane content had no effect on the reduction process. Preoxidation of the titanomagnetite accelerated its reduction. Reduced iron in titanomagnetite was converted to cementite more slowly than in hematite.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 46 (5), 641-646, 2006

  一般社団法人 日本鉄鋼協会

キーワード

• titanomagnetite
• cementite
• direct reduced iron
• reduction
• carburisation

詳細情報

• CRID: 1390282681466110592
• NII論文ID: 10018046395
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.46.641
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational/46/5/46_5_641/_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