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Iron ore classification by XRD-Rietveld and cluster analysis (2016)

  • Authors:
  • USP affiliated authors: ANDRADE, FABIO RAMOS DIAS DE - IGC
  • USP Schools: IGC
  • DOI: 10.11606/issn.2316-9095.v16i2p19-24
  • Subjects: MINÉRIOS (ANÁLISE QUANTITATIVA); FERRO; DIFRAÇÃO POR RAIOS X
  • Language: Inglês
  • Abstract: Este trabalho estabelece uma rotina de análise quantitativa de fases por difração de raios X (DRX-Rietveld) em minério de ferro. As amostras analisadas são provenientes do Quadrilátero Ferrífero, Sudeste do Brasil, sendo compostas por hematita, magnetita, goethita, quartzo e caulinita, tendo sido classificadas em três agrupamentos: agrupamento 1 (n = 8), caracterizado pela presença das fases de alteração goethita (25 a 72% em peso), caulinita (< 25% em peso) e gibbsita (< 10% em peso), além de hematita (7 a 54% em peso) e quartzo (2 a 19% em peso); agrupamento 2 (n = 16), com amostras compostas por hematita (22 a 81% em peso) e quartzo (2 a 58% em peso), com proporções menores de goethita (< 22% em peso) e caulinita (< 13% em peso); agrupamento 3 (n = 3), contendo amostras com predomínio de quartzo (62 a 74% em peso) e proporções menores de hematita (17 a 33% em peso) e caulinita (< 5% em peso). A classificação de minérios de ferro por DRX-Rietveld e análise de agrupamento é uma opção rápida, confiável e de baixo custo para substituir a classificação de minérios por análises químicas.
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    Informações sobre o DOI: 10.11606/issn.2316-9095.v16i2p19-24 (Fonte: oaDOI API)
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    Versões disponíveis em Acesso Aberto do: 10.11606/issn.2316-9095.v16i2p19-24 (Fonte: Unpaywall API)

    Título do periódico: Movement Disorders

    ISSN: 0885-3185

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  • Título: Geologia USP - Serie Cientifica

    ISSN: 1519-874X

    Citescore - 2017: 0.51

    SJR - 2017: 0.331

    SNIP - 2017: 0.477


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    • ABNT

      ANDRADE, Fábio Ramos Dias de; GOBBO, Luciano de Andrade; SOUSA, Lyvia Fernanda Amaral. Iron ore classification by XRD-Rietveld and cluster analysis. Geologia USP. Série Científica, São Paulo, v. 16, n. ju 2016, p. 19-24, 2016. Disponível em: < http://dx.doi.org/10.11606//issn.2316-9095.v16i2p19-24 > DOI: 10.11606/issn.2316-9095.v16i2p19-24.
    • APA

      Andrade, F. R. D. de, Gobbo, L. de A., & Sousa, L. F. A. (2016). Iron ore classification by XRD-Rietveld and cluster analysis. Geologia USP. Série Científica, 16( ju 2016), 19-24. doi:10.11606/issn.2316-9095.v16i2p19-24
    • NLM

      Andrade FRD de, Gobbo L de A, Sousa LFA. Iron ore classification by XRD-Rietveld and cluster analysis [Internet]. Geologia USP. Série Científica. 2016 ; 16( ju 2016): 19-24.Available from: http://dx.doi.org/10.11606//issn.2316-9095.v16i2p19-24
    • Vancouver

      Andrade FRD de, Gobbo L de A, Sousa LFA. Iron ore classification by XRD-Rietveld and cluster analysis [Internet]. Geologia USP. Série Científica. 2016 ; 16( ju 2016): 19-24.Available from: http://dx.doi.org/10.11606//issn.2316-9095.v16i2p19-24

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