ISSN 2594-357X
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Abstract
The objective of this research was to study the total simplified estimation of hematite and magnetite ore with CO and H2 such as reduction degree of iron ores, reduction rate and morphology analysis. The reduction degree and reduction rate data of hematite ore and magnetite ore with CO or H2 at various temperatures (400°C to 1,000°C) were reported using a thermogravimetric analysis, respectively. The reduction degree of hematite ore with CO or H2 increased with an increase in reaction temperature. The initial reduction rate of magnetite ore with H2 is increased with an increase in reaction temperature for 30min. Whereas the final reduction degree of magnetite ore was shown the retardation of reduction above the reduction temperature of 800°C. Also, the reduction rate could be enhanced by the addition of H2 to the CO-based reducing gas.
The objective of this research was to study the total simplified estimation of hematite and magnetite ore with CO and H2 such as reduction degree of iron ores, reduction rate and morphology analysis. The reduction degree and reduction rate data of hematite ore and magnetite ore with CO or H2 at various temperatures (400°C to 1,000°C) were reported using a thermogravimetric analysis, respectively. The reduction degree of hematite ore with CO or H2 increased with an increase in reaction temperature. The initial reduction rate of magnetite ore with H2 is increased with an increase in reaction temperature for 30min. Whereas the final reduction degree of magnetite ore was shown the retardation of reduction above the reduction temperature of 800°C. Also, the reduction rate could be enhanced by the addition of H2 to the CO-based reducing gas.
Keywords
Hydrogen reduction; Hematite ore; Magnetite ore; Iron ore.
Hydrogen reduction; Hematite ore; Magnetite ore; Iron ore.
How to refer
Lee, Seungmoon;
Jung, Jonghwun;
Kim, Kihyun;
Kim., Sungman.
A STUDY ON THE REDUCTION OF MAGNETITE ORE WITH
HYDROGEN
,
p. 1015-1019.
In: 42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking,
Rio de Jabeiro,
2012.
ISSN: 2594-357X
, DOI 10.5151/2594-357X-22189
