Self Reducing Pellets
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Evaluation of zinc removal and compressive strength of self-reducing pellets composed of Electric Arc Furnace Dust
Abstract The amount of Electric Arc Furnace Dust (EAFD) is continuously increasing in mini-mill steel plants. This dust is considered a hazardous waste because of the presence of elements like lead, cadmium and chromium. Among many different treatment processes for this issue, there is the possibility of returning the EAFD back to the Electric Arc Furnace. T
REM, Int. Eng. J.. Publicado em: 2019-03
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2. Microstructural, thermochemistry and mechanical evaluation of self-reducing pellets using electric arc furnace (EAF) dust containing zinc for Waelz process
ABSTRACT The increment of recycling of steel using electric arc furnace and the tendency to coat of steel products with zinc, in order to prevent corrosion, has increased the proportion of galvanized scrap used worldwide in the recent years. Approximately 10 to 20 Kg/t of cast steel is generated in casting arcs. These collected dusts electric arc furnace (EA
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. Binder Behavior on Chromite-Carbon Composite Pellets
The influence of binders on the mechanical properties of chromite, self-reducing pellets, after subjecting to high temperatures, is analyzed in this paper. Bentonite, sodium silicate, and a combination of bentonite with carboxymethyl cellulose (CMC) were tested with different contents. All of the raw materials were characterized by chemical analysis and part
Mat. Res.. Publicado em: 29/09/2016
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5. Characterization and three-dimensional reconstruction of pores of self-reducing pellets done by EAF dust
This work focused on the characterization physical and microstructural of the self-reducing pellet made of Electric Arc Furnace (EAF) dust using different low cost techniques. The serial sectioning technique was used to evaluate detailed measurements of pore connections, tortuositiy of pores and porosity distribution. The chemical analysis using Inductively
Mat. Res.. Publicado em: 23/08/2013
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6. Estudo da redução carbotérmica de minérios de ferro na forma de pelotas ou misturas autorredutoras em forno rotativo. / Study of carbothermic reduction of iron ore in the form of self-reducing pellets or mixtures in rotary kiln.
A finalidade deste trabalho é estudar a redução carbotérmica de minério hematítico com misturas e pelotas autorredutoras em um forno rotativo experimental. Trabalhou-se com duas temperaturas, a 1673 e 1773 K (1400 a 1500 °C), em fluxo de argônio de 1Nl/min, em um forno rotativo experimental aquecido por resistências, com uma rotação fixa de 5 rpm.
Publicado em: 2010
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7. Auto-redução e fusão redução de pelotas auto-redutoras de cromita. / Self-reduction and fusion reduction of chromite self-reducing pellets
Neste trabalho estudou-se a evolução da redução da pelota auto-redutora de cromita contendo coque de petróleo, ferro-silício, cal hidratada, sílica e cimento Portland ARI (alta Resistência Inicial), para a obtenção da liga ferro-cromo alto carbono (FeCrAC). As principais variáveis estudadas foram: influência das adições de Fe-75%Si em sinergism
Publicado em: 2009
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8. Study of reduction in self-reducing pellet of chromites. / Estudo da redução de pelotas auto-redutoras de cromita.
The reduction behaviors, at high temperature, of the self-reducing pellets of chromites for production of high carbon ferro-chromium are studied in this work. The influences of the temperature, of the excess of reductant and the small addition of the Fe-Si were analyzed. The materials used (chromites, petroleum coke, Portland cement, hydrated lime and silica
Publicado em: 2006