Non-linear Kinetic Analysis of Decarburization and Deoxidization of Liquid Iron by Ar-CO-CO2 Gas Mixtures.

• Xiaojie Tao

  Graduate Student, Tokyo Institute of Technology

• Fukuyama Hiroyuki

  Department of Chemistry and Materials Science, Graduate School of Engineering, Tokyo Institute of Technology

• Susa Masahiro

  Department of Metallurgical Engineering, Faculty of Engineering, Tokyo Institute of Technology

• Nagata Kazuhiro

  Department of Chemistry and Materials Science, Graduate School of Engineering, Tokyo Institute of Technology

Abstract

Decarburization and deoxidization of liquid iron in Ar-CO-CO₂ gas mixtures were investigated at 1843 K using a cold crucible. The carbon or oxygen concentration decreased against their chemical potential gradients in the initial stage of the reactions. The concentration changes in the whole process were successfully reproduced by nonlinear equations based upon the two independent reactions in which the nonlinear reaction CO(g)=C+O was included. It has been shown that the decarburization of liquid iron in Ar-CO-CO₂ under reduced pressure can be also reasonably described by the non-linear kinetic equations.

Journal

• ISIJ International

  ISIJ International 39 (4), 301-308, 1999

  The Iron and Steel Institute of Japan

Keywords

• decarburization
• kinetics
• non-linear kinetic equation
• independent reaction
• liquid iron

Details

• CRID: 1390001206452872064
• NII Article ID: 10002462695
• NII Book ID: AA10680712
• DOI: 10.2355/isijinternational.39.301
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/39/4/39_4_301/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed