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

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


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 languageEnglish (US)
Pages (from-to)977-979
Number of pages3
JournalMaterials Science and Engineering: A
StatePublished - Oct 30 2012

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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