| Journal: | Latin American applied research |
| Database: | PERIÓDICA |
| System number: | 000372251 |
| ISSN: | 0327-0793 |
| Authors: | Faria, G.L1 Reis, E.L2 Jannotti-Junior, N3 Araujo, F.G.S2 |
| Institutions: | 1Rede Tematica em Engenharia de Materiais, Ouro Preto, Minas Gerais. Brasil 2Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais. Brasil 3VALE-Manganes, Nova Lima, Minas Gerais. Brasil |
| Year: | 2013 |
| Season: | Ene |
| Volumen: | 43 |
| Number: | 1 |
| Pages: | 17-22 |
| Country: | Argentina |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The physical, chemical and typological characteristics of manganese lump ores from three Brazilian mines, Azul, Morro da Mina and Urucum are presented herein. The chemical analysis was done by AES-ICP and titration. The typological characterization was obtained by optical microscopy and X-ray diffraction. The physical properties studied included density, surface area and porosity. The Azul, Urucum and Morro da Mina Mn contents are, respectively, 47.68, 42.69 and 28.44%. The Urucum lump ore presents the highest structural density (4.29g/cm3), followed by Azul (3.98g/cm3) and by Morro da Mina (3.56g/cm3). The Urucum, Morro da Mina and Azul bulk porosities are 22.68, 10.79 and 29.40cm3/kg, respectively. The oretypological classifications are: anhydrous-oxide for Urucum, hydrated- oxide for Azul and silicate-carbonate for Morro da Mina. The thermogravimetric analysis showed that the ore weight losses could be associated to different phenomena, depending on the ore typology |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería metalúrgica, Manganeso, Agregados minerales, Caracterización química, Tipología |
| Keyword: | Engineering, Metallurgical engineering, Lump ores, Manganese, Chemical characterization, Typology |
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