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

doi:10.2355/tetsutohagane.TETSU-2015-073

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

Material process engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	61-67
Number of pages	7
Journal	Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume	102
Issue number	2
DOIs	https://doi.org/10.2355/tetsutohagane.TETSU-2015-073
Publication status	Published - 2016

All Science Journal Classification (ASJC) codes

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

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abstract = "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.",

author = "Tsunehisa Nishimura and Kenichi Higuchi and Ohnono, {Ko Ichiro} and Kazuya Kunitomo",

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AU - Nishimura, Tsunehisa

AU - Higuchi, Kenichi

AU - Ohnono, Ko Ichiro

AU - Kunitomo, Kazuya

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AB - 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.

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