Effect of slag composition on iron nuggets formation from carbon composite pellets
Autor: | Cyro Takano, Marcelo Breda Mourão, Alberto Eloy Anduze Nogueira, Dener Martins dos Santos |
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Jazyk: | angličtina |
Rok vydání: | 2010 |
Předmět: |
Materials science
Mechanical Engineering Metallurgy Composite number Pellets chemistry.chemical_element Slag Liquidus Condensed Matter Physics Iron powder composite pellets iron nuggets chemistry carbothermic reduction Mechanics of Materials visual_art visual_art.visual_art_medium lcsh:TA401-492 General Materials Science Composition (visual arts) lcsh:Materials of engineering and construction. Mechanics of materials Carbon |
Zdroj: | Materials Research, Vol 13, Iss 2, Pp 191-195 (2010) Materials Research v.13 n.2 2010 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL Materials Research, Volume: 13, Issue: 2, Pages: 191-195, Published: JUN 2010 |
ISSN: | 1516-1439 |
Popis: | Iron-carbon nuggets can be obtained by high temperature reduction of iron ore by carbonaceous material when both are agglomerated together as a carbon composite pellet. During this process, the stable oxides contained in the materials will form a slag. This work investigates the effect of this slag composition on iron nugget formation. Pellets were prepared with iron ore and two different carbonaceous materials. Through the addition of Portland® cement, silica and alumina the slag composition was varied to adjust the expected liquidus temperature to 1573 and 2273 K. It has been shown that the formation of iron nuggets is favored for slags presenting low liquidus temperature. In order to further investigate this phenomenon, pellets containing iron powder and carbonaceous material, together with previously prepared slags, were also submitted to high temperature, and it has been shown that iron carburization depends on slag composition. |
Databáze: | OpenAIRE |
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