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Materials Congress 2018
Page 30
Nano Research & Applications
ISSN: 2471-9838
W o r l d C o n g r e s s o n
Materials Science & Engineering
A u g u s t 2 3 - 2 5 , 2 0 1 8
Am s t e r d a m , N e t h e r l a n d s
C
hemical 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 reduction process of several metal oxides, such as magnesium
oxide, scandium oxide, copper oxide, and magnetite. It was found that those
reduction processes has been done with low temperature under microwave
irradiation in comparison with conventional heat process. Sometimes, oxide
does not absorb microwave energy well and does not generate heat well. So,
when electrical conductivity material used as a reducing agent was mixed with
metal oxide and made into an antenna structure, it became easier to absorb
the microwave energy and reduce the temperature. In smelting of magnesium,
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.
Biography
Satoshi Fujii was born in Osaka, Japan, in 1962. He received
his BS and MS degrees in Material Science from Tsukuba
University, Ibaragi, Japan, in 1985 and 1987, respectively. He
received his PhD degree in Material Engineering from Kyoto
Institute of Technology in 2007. In 1987, he joined Sumitomo
Electric Industries and engaged in research on GaAs ICs in
Opto-electronics Laboratories. Since 1992, he has been with
Itami Research Laboratories, engaged in research on diamond
SAW devices. In 2004, he moved to the Advanced Technology
Development Center, Seiko-Epson Corp., in order to study
diamond SAW devices and related modules. In 2009, he
moved to Chiba University in order to encourage PhD students
to become leaders in industry, and to continue his studies on
diamond SAW devices and microwave chemistry with Prof.
Wada. In 2015, he joined the faculty of the National Institute of
Technology, Okinawa as a Professor.
fujii.s.ap@m.titech.ac.jpStudy on reduction process of metal oxide under microwave
irradiation
Satoshi Fujii
1
, Shuntaro Tsubaki
2
, Eiichi Suzuki
2
and Yuji Wada
2
1
National Institute of Technology, Okinawa College/Tokyo Institute of Technology, Japan
2
Tokyo Institute of Technology, Japan
Satoshi Fujii et al., Nano Res Appl 2018, Volume: 4
DOI: 10.21767/2471-9838-C4-017