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Journal of Materials Science and Nanotechnology | Volume 3
May 16-17, 2019 | Prague, Czech Republic
2
nd
International Conference on
22
nd
International Conference on
Nanomaterials and Nanotechnology
Advanced Nanoscience and Nanotechnology
Joint Event
&
Mater Sci Nanotechnol, Volume 3
R
efractory is a key part on the production of all metals used
by themodern society. Steel presents the highest demand
on most of our day by day use from automotive exteriors to
garbage cans and rail. The refractory industry is driven by the
development of new or improved processes demanded by
the customers and steel industry has been pointing out the
tendency for high quality steel which requires sophisticated
manufacturing technologies and decarburization rate for
the low carbon content below 20ppm. As the requirements
for steel quality have become increasingly strict with strong
demand for high strength and high toughness steel plates,
a new refractory generation with extra low carbon was
developed. Besides the advantages of energy economy in
steel process and higher clean steel, another additional
benefit includes less CO
2
emissions.
Extra low carbon bricks mean less thermal conductivity
products and only can be achieved by replacing natural
graphite by special nanographite. This new raw material
was conceived to withstand the same oxidation resistance
than natural flake graphite to compensate the nano particle
size and also to achieve the desired properties to match the
requirements for steel industry trials. This work presents
the nanographite approach to the real application in steel
production with an expressive reduction in the amount of
graphite from 5%wt to 1%wt. Properties and customer’s trial
with nanographite bricks in steel ladle are also shown with
improving carbon efficiency in an environmental friendly
product.
Speaker Biography
Carlos Pagliosa graduated in material engineer at Federal University of São
Carlos (UFSCar), with MSc and PhD at UFSCar and post-doc study at ETH
(Zurique). He has been a researcher in the refractory field for 25 years.
Actually, on the position of researcher at RHI Magnesita's R&D, responsible
for developing MgO-C refractories for BOF and bricks for ladles.
e:
carlos.neto@rhimagnesita.comCarlos Pagliosa
Adão Campos
and
Vanderlúcio Madalena
RHI Magnesita, Brazil
Improving carbon efficiency in refractory industry with nanographite
brick technology