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Proceedings of the Ironmaking, Iron Ore and Agglomeration Seminars

ISSN 2594-357X

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 — vol. 6, num.6 (2012)

Title

EXPERIMENTAL STUDY ON THE REDUCTION OF IRON ORE COAL MIXED PELLETS OF HIGH PHOSPHORUS HEMATITE PRE-TREATED BY MICROWAVE IRRADIATION

EXPERIMENTAL STUDY ON THE REDUCTION OF IRON ORE COAL MIXED PELLETS OF HIGH PHOSPHORUS HEMATITE PRE-TREATED BY MICROWAVE IRRADIATION

Authorship

Zhi-jun, He; Yong-long, Jin; Shou-zhen, Wang; Jun-hong., Zhang

Zhi-jun, He
Zhi-jun, He

I am this author

Yong-long, Jin
Yong-long, Jin

I am this author

Shou-zhen, Wang
Shou-zhen, Wang

I am this author

Jun-hong., Zhang
Jun-hong., Zhang

I am this author

DOI

10.5151/2594-357X-22184

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Abstract

In order to make full use of high phosphorus oolitic hematite and the advantage of microwave applied in metallurgy, the experimental study on the reduction of iron ore and coal mixed pellets pre-treated by microwave irradiation was carried out. Through the analysis of microstructure of pellets after reduction, the paper concludes that microwave irradiation could raise the reduction degree of iron ore and coal mixed pellets through descending the activation energy of molecular orbital and enhancing the surface free energy of pellets. The results showed that the reduction degree of iron ore coal mixed pellets was raised from 64% to 90% after microwave irradiation.

 

In order to make full use of high phosphorus oolitic hematite and the advantage of microwave applied in metallurgy, the experimental study on the reduction of iron ore and coal mixed pellets pre-treated by microwave irradiation was carried out. Through the analysis of microstructure of pellets after reduction, the paper concludes that microwave irradiation could raise the reduction degree of iron ore and coal mixed pellets through descending the activation energy of molecular orbital and enhancing the surface free energy of pellets. The results showed that the reduction degree of iron ore coal mixed pellets was raised from 64% to 90% after microwave irradiation.

Keywords

High phosphorus oolitic hematite; Microwave; Non-thermal effect; Reduction degree.

High phosphorus oolitic hematite; Microwave; Non-thermal effect; Reduction degree.

How to refer

Zhi-jun, He; Yong-long, Jin; Shou-zhen, Wang; Jun-hong., Zhang. EXPERIMENTAL STUDY ON THE REDUCTION OF IRON ORE COAL MIXED PELLETS OF HIGH PHOSPHORUS HEMATITE PRE-TREATED BY MICROWAVE IRRADIATION , p. 971-976. 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-22184