Characterization and concentration by selective flocculation/magnetic separation of iron ore slimes from a dam of Quadrilátero Ferrífero – Brazil.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorLima, Rosa Malena Fernandes-
Autor(es): dc.creatorAbreu, Francisco de Paula Vitor Fonseca-
Data de aceite: dc.date.accessioned2025-08-21T15:18:38Z-
Data de disponibilização: dc.date.available2025-08-21T15:18:38Z-
Data de envio: dc.date.issued2021-11-11-
Data de envio: dc.date.issued2021-11-11-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/jspui/handle/123456789/13918-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.jmrt.2019.12.034-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1009973-
Descrição: dc.descriptionIn this paper the results of size, chemical and mineralogical characterizations as well as the concentration tests performed with a slimes sample of iron ore from a dam at the Quadrilátero Ferrífero in the state of Minas Gerais, Brazil are presented. The sample was constituted by 75 % of slimes (particles –10m). The main minerals identified by X-ray diffractometry and thermal analysis were: goethite, hematite, quartz and kaolinite. The sample grades were: Fe (∼51.4 wt.%.), SiO2 (∼15.1 wt.%), Al2O3 (∼3.4 wt.%), P (0.097 wt.%) and LOI (∼7 wt.%). During the optimized bench testing condition of selective flocculation/magnetic separation (pH = 10.5, sodium silicate and corn starch =50 g/ton, magnetic strength =3575 G) by experimental statistical planning design, the mass recovery was of 48.4 %. There was an increase of 8 % in Fe grade and a decrease of 50 % in both SiO2 and Al2O3 grades when compared with the feed. Agglomeration studies with the obtained concentrate will be performed in future.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsThis is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Source: The article PDF.-
Palavras-chave: dc.subjectIron ore-
Palavras-chave: dc.subjectSlimes-
Palavras-chave: dc.subjectSodium silicate-
Palavras-chave: dc.subjectCorn starch-
Palavras-chave: dc.subjectSelective flocculation-
Título: dc.titleCharacterization and concentration by selective flocculation/magnetic separation of iron ore slimes from a dam of Quadrilátero Ferrífero – Brazil.-
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