Effect of ore layer thickness on reduction degree and gas permeability in high temperature properties test

Tsunehisa Nishimura, Kenichi Higuchi, Ko Ichiro Ohnono, Kazuya Kunitomo

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4 Citations (Scopus)


To evaluate condition and distribution of reduction degree and gas permeability in ore layer, examinations of high temperature properties with various ore layer thickness were executed. Gas permeability begins to decrease from the upper part of ore layer, where melt with more FeO is formed with low reduction degree. Experimental results show that the difference of reduction degree in ore layer of examination of high temperature properties is about 40% at 1200°C. Estimation with mathematical model indicates that difference of reduction degree in ore layer increases with decreasing gas flow rate.

Original languageEnglish
Pages (from-to)61-67
Number of pages7
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Issue number2
Publication statusPublished - Jan 1 2016


All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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