Iron And Steel Industry
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. Análise da geração de energia elétrica por meio da utilização de conversores do tipo TEG em lingotamento contínuo de aços
RESUMO A fabricação do aço é um processo que requer enormes quantidades de recursos, como por exemplo combustíveis, minério de ferro, carvão, entre outros. Com a crescente preocupação com o meio ambiente, seja pelas cargas ambientais ou pelo aquecimento global, cresce também a necessidade do desenvolvimento de novas tecnologias que possibilitem um
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Degradación de un efluente textil real asistida por Fe/PVA y materiales residuales magnéticos
ABSTRACT Organic compounds present on industrial wastes are mostly resistant to conventional biological and chemical treatments. Textile industry has presented several environmental problems mainly related to the use and management of water resources. It has a high consumption of potable and underground water in its processes. These wastewaters are one of th
Matéria (Rio J.). Publicado em: 19/07/2018
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3. Carbothermic reduction of Electric Arc Furnace Dust via thermogravimetry
Abstract Electric Arc Furnace Dust (EAFD) is a solid waste originated from electric steelmaking furnaces. Currently, according to some authors, there is an estimated generation of 15 to 25 kg of dust per ton of steel produced. The formation of the dust is related to the following steps of the process: furnace charge, metal volatilization, iron vaporization u
REM, Int. Eng. J.. Publicado em: 2018-07
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4. Processes for phosphorus removal from iron ore - a review
This paper aims at reviewing literature on the occurrence of phosphorus in iron ores from the mines around the world. The review extends to the phosphorus removal processes of this mineral to meet the specifications of the steel industry. Phosphorus is a contaminant that can be hard to remove, especially when one does not know its mode of occurrence in the o
Rem: Rev. Esc. Minas. Publicado em: 2015-09
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5. Microstructure and wear resistance of spray-formed supermartensitic stainless steel
Since the early 90's the oil industry has been encouraging the development of corrosion and wear resistant alloys for onshore and offshore pipeline applications. In this context supermartensitic stainless steel was introduced to replace the more expensive duplex stainless steel for tubing applications. Despite the outstanding corrosion resistance of stainles
Mat. Res.. Publicado em: 25/02/2013
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6. Testing strategies to evaluate non-oriented electrical steels losses
This paper presents an experimental comparative study of iron losses obtained by means of the Epstein frame, Ring Core and dynamometer tests with non-oriented electrical steel samples. The comparisons are qualitative and they are intended to show the importance of carrying out other tests to evaluate electrical steels in addition to the standard Epstein fram
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2012-12
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7. Evaluation of the properties of iron oxide-filled castor oil polyurethane
The aim of this study was to obtain and evaluate the electrical, thermal and mechanical properties of iron oxide-filled castor oil polyurethane (PU/Fe2O3). The iron oxide used in this study was a residue derived from the steel pickling process of a Brazilian steel rolling industry. Polymeric composites with different iron oxide volume fractions (2.5, 5.0, 7.
Mat. Res.. Publicado em: 26/10/2012
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8. PELLETIZING AND REDUCING OF MAGNETITE CONCENTRATE / PELOTIZAÇÃO E REDUÇÃO DE CONCENTRADO MAGNETÍTICO
The global increasing trend of producing iron ore fines (sinter feed and pellet feed) has also increased the importance of the agglomeration processes, in particular the pelletizing, which has as main characteristic to produce high quality pellets with excellent mechanical resistance, besides being a less polluting process than the sintering. Currently, Braz
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/04/2011
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9. âRevestimento por soldagem MIG/MAG empregando ligas de nÃquel para apliacaÃÃes em componentes do setor de petrÃleo e gÃs naturalâ / Gmaw Welding Overlay Of Nickel-Based Alloys For Applications In Oil And Natural Gas Components
The weld overlay of nickel-based alloys is an alternative often used in oil and gas industry to prevent corrosion in pipes and equipments operating under severe conditions. In many situations the requirements of weld overlays are based in a maximum of 5% iron content in the weld metal to ensure corrosion resistance. The aim of this study was to determine the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/12/2010
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10. A competitividade no mercado transoceânico de pelotas de minério de ferro, seus delineadores e o posicionamento dos integrantes deste mercado
The mining companies located in the main iron ore producing countries, Brazil, Australia, India, South Africa, Ukraine, Russia, China, USA and Canada dominate the world´s production and have being enjoying extremely favourable conditions in their relationship with the steel industry, responsible for around 99% of the world´s demand for iron ore. However, a
Publicado em: 2010
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11. Carvão vegetal e siderurgia: de elo perdido a solução para um mundo pós-Kyoto / Charcol based iron &steelmaking: from primitive technological model to solution for a post-Kyoto world
In a global-warming-frightened world, the positive carbon balance of charcoal-based iron &steel making recovers it from a past outshined by the dominance of the large fossil fuel mills. Nevertheless, the risk of not being able to profit from the global decarbonization consensus is material, owing to the dependency on deforestation. This is true even being th
Publicado em: 2009
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12. Degradação de espécies nitroaromáticas e remediação de efluentes da indústria de explosivos, utilizando-se processos redutivos-oxidativos fundamentados no uso de ferro metálico
In this work the potentiality of reductive-oxidative processes based on zero-valent iron was studied aiming the degradation of nitroaromatic compounds and the remediation of residues from the explosive industry. The reductive process was applied as a continuous treatment system, using steel-wool as zero-valent iron source. The process permitted an almost tot
Química Nova. Publicado em: 2009