Study on metal smelting process under microwave irradiation

Satoshi Fujii, Eiichi Suzuki, Naomi Inazu, Shuntarou Tsubaki, Masahiko Maeda, Yuji Wada

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Chemical reactions carried out under microwave irradiation often have high reaction rates and high selectivities, which enable compact reactor sizes and energy-conservation processes. Thus, microwave chemical processing and chemical synthesis have attracted considerable interest, as they will be employed for greatly improving process efficiencies and conserving energy for realizing “Green Chemistry” or “Green Engineering”. We have applied this technology to smelting process of magnesium metal. But Oxide (dolomite) does not absorb microwave energy well and does not generate heat. This time, when electrically conductivity ferrosilicon used as a reducing agent was mixed with the raw dolomite material and made into an antenna structure, it became easier to absorb the microwave energy and reduce the temperature. We have successfully obtained small amount of magnesium metal using a microwave irradiation with high yield of 71%, and also showed quarter of energy consumption in comparison with conventional process, which is called Pidgeon process.

Original languageEnglish
Title of host publicationMagnesium Technology 2018
EditorsKiran N. Solanki, Vineet Joshi, Neale R. Neelameggham, Dmytro Orlov
PublisherSpringer International Publishing
Number of pages2
ISBN (Print)9783319723310
Publication statusPublished - 2018
Externally publishedYes
EventInternational Symposium on Magnesium Technology, 2018 - Phoenix, United States
Duration: Mar 11 2018Mar 15 2018

Publication series

NameMinerals, Metals and Materials Series
VolumePart F7
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696


ConferenceInternational Symposium on Magnesium Technology, 2018
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry


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