Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/jspui/handle/123456789/9068
Title: Sintering of manganese ore tailings under an argon atmosphere.
Authors: Lima, Margarida Márcia Fernandes
Valduga, Fillipe
Lima, Rosa Malena Fernandes
Keywords: Manganese ore
Sintering
Tailings
Issue Date: 2016
Citation: LIMA, M. M. F.; VALDUGA, F.; LIMA, R. M. F. Sintering of manganese ore tailings under an argon atmosphere. Materials Science Forum, v. 869, p. 1013-1017, 2016. Disponível em: <https://www.scientific.net/MSF.869.1013>. Acesso em: 25 ago. 2017.
Abstract: Manganese is a chemical element widely used in Metallurgy. In Brazil, the ore’s beneficiation processes discharge the tailings (fraction size 0.106mm) with considerable Mn content. It would be interesting to recover this material. The aim of this work was to obtain and characterize the sinters from the manganese ore tailings at the Morro da Mina Mine. The fines (37 μm) were calcinated at 800°C for 3600s, and afterwards, homogenized with activated charcoal (7 and 10%) and CaO (5 and 10%). The sintering were carried out at 1135, 1140 and 1145°C during 7200 and 14400s under an argon atmosphere. The sintered products were characterized by BET surface area, apparent density, X-ray diffraction, MO and SEM/EDS. The presence of potassium from the alkalis justified the low melting point of the tailings (1145°C). Due to the chemical complexity of the tailings, several phases were identified in the products: pores, silicates with a high content of manganese in the matrix, as well as other silicates with different proportions of Al, Mn, Mg and Ca, pure Fe, and SiO2, etc.
URI: http://www.repositorio.ufop.br/handle/123456789/9068
metadata.dc.identifier.uri2: https://www.scientific.net/MSF.869.1013
metadata.dc.identifier.doi: https://doi.org/10.4028/www.scientific.net/MSF.869.1013
ISSN: 1662-9752
Appears in Collections:DEMIN - Artigos publicados em periódicos

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