Iron production from Fe3O4 and graphite by applying 915MHz microwaves

Keiichiro Kashimura; Motoyasu Sato; Masahiro Hotta; Dinesh Kumar Agrawal; Kazuhiro Nagata; Miyuki Hayashi; Tomohiko Mitani; Naoki Shinohara

doi:10.1016/j.msea.2012.07.049

Iron production from Fe₃O₄ and graphite by applying 915MHz microwaves

Keiichiro Kashimura, Motoyasu Sato, Masahiro Hotta, Dinesh Kumar Agrawal, Kazuhiro Nagata, Miyuki Hayashi, Tomohiko Mitani, Naoki Shinohara

Materials Research Institute (MRI)

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

29 Scopus citations

Abstract

The chemical behavior of iron ore reduction was experimentally studied under electric and magnetic fields of microwaves. The microwave magnetic field rapidly heated the powdery ores so that the reduction of the ore to metal ions was completed. The mechanism was investigated theoretically. It was found that the combined effect of thermal energy and a portion of the microwave magnetic field enhanced deoxidation and that the microwaves act as a dynamic catalyst at high temperatures. High-frequency magnetic fields were found to enhance the antibonding character of oxygen in materials with unpaired spins above the Fermi level of the 3d shell.

Original language	English (US)
Pages (from-to)	977-979
Number of pages	3
Journal	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	556
DOIs	https://doi.org/10.1016/j.msea.2012.07.049
State	Published - Oct 30 2012

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2012.07.049

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title = "Iron production from Fe3O4 and graphite by applying 915MHz microwaves",

abstract = "The chemical behavior of iron ore reduction was experimentally studied under electric and magnetic fields of microwaves. The microwave magnetic field rapidly heated the powdery ores so that the reduction of the ore to metal ions was completed. The mechanism was investigated theoretically. It was found that the combined effect of thermal energy and a portion of the microwave magnetic field enhanced deoxidation and that the microwaves act as a dynamic catalyst at high temperatures. High-frequency magnetic fields were found to enhance the antibonding character of oxygen in materials with unpaired spins above the Fermi level of the 3d shell.",

author = "Keiichiro Kashimura and Motoyasu Sato and Masahiro Hotta and {Kumar Agrawal}, Dinesh and Kazuhiro Nagata and Miyuki Hayashi and Tomohiko Mitani and Naoki Shinohara",

year = "2012",

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day = "30",

doi = "10.1016/j.msea.2012.07.049",

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journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",

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T1 - Iron production from Fe3O4 and graphite by applying 915MHz microwaves

AU - Kashimura, Keiichiro

AU - Sato, Motoyasu

AU - Hotta, Masahiro

AU - Kumar Agrawal, Dinesh

AU - Nagata, Kazuhiro

AU - Hayashi, Miyuki

AU - Mitani, Tomohiko

AU - Shinohara, Naoki

PY - 2012/10/30

Y1 - 2012/10/30

N2 - The chemical behavior of iron ore reduction was experimentally studied under electric and magnetic fields of microwaves. The microwave magnetic field rapidly heated the powdery ores so that the reduction of the ore to metal ions was completed. The mechanism was investigated theoretically. It was found that the combined effect of thermal energy and a portion of the microwave magnetic field enhanced deoxidation and that the microwaves act as a dynamic catalyst at high temperatures. High-frequency magnetic fields were found to enhance the antibonding character of oxygen in materials with unpaired spins above the Fermi level of the 3d shell.

AB - The chemical behavior of iron ore reduction was experimentally studied under electric and magnetic fields of microwaves. The microwave magnetic field rapidly heated the powdery ores so that the reduction of the ore to metal ions was completed. The mechanism was investigated theoretically. It was found that the combined effect of thermal energy and a portion of the microwave magnetic field enhanced deoxidation and that the microwaves act as a dynamic catalyst at high temperatures. High-frequency magnetic fields were found to enhance the antibonding character of oxygen in materials with unpaired spins above the Fermi level of the 3d shell.

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JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

ER -

Iron production from Fe₃O₄ and graphite by applying 915MHz microwaves

Abstract

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