Título: | MINERALOGICAL CHARACTERIZATION OF GOLD ORE OF THE RIO PARACATU MINERAÇÃO (RPM), AIMING AT THE DETERMINATION OF TITANIUM–BEARING MINERALS | ||||||||||||||||||||||||||||||||||||||||
Autor: |
RONALD ROJAS HACHA |
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Colaborador(es): |
MAURICIO LEONARDO TOREM - Orientador LUIZ CARLOS BERTOLINO - Coorientador |
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Catalogação: | 25/FEV/2011 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||||||||||||||||||||||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=16974&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=16974&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.16974 | ||||||||||||||||||||||||||||||||||||||||
Resumo: | |||||||||||||||||||||||||||||||||||||||||
This work presents studies in Minerals Characterization of gold ore sample
from RPM-Kinross with objective to identify their titanium-bearing minerals and
to assess its behavior in different size fraction (spectrum release). The
methodology involved particle size analysis and minerals separation (separation in
dense medium and magnetic separation), followed of mineralogical studies by XRay
Diffraction, Optical Microscopy and Scanning Electron Microscopy (SEM)
by using the Mineral Liberation Analyzer-MLA. The products obtained were
submitted to Chemical Analysis of X-Ray Fluorescence. The analysis of X-Ray
Fluorescence revealed that the sample studied was formed essentially by SiO2
(66,4%), Al2O3 (14,2%), Fe2O3 (7,22%) and TiO2 (1%). The studies were focused
in six different sizes (-300+212; -212+150; -150+104; -104+74; -74+53 and -
53+37um). ). About 20% of the material from all fractions material is sunk (dense
medium), composed mainly of SiO2 (35%), Fe2O3 (30%), Al2O3 (> 7%) and TiO2
(<5%). The floated fraction was composed mainly of SiO2 and Al2O3. The XRD
of the sunken fraction indicated the presence of ilmenite, rutile and anatase. The
sunken fractions were subjected to magnetic separation in the Frantz separator at
different current intensities (0.3 to 1.75A), this operation was concentrated up to 8
wt% TiO2 in the fraction -104 +74um and 0.5A. The sunken fractions were
subjected to systematic studies in the SEM system with MLA, confirming the
presence of ilmenite, rutile and anatase as the titanium-bearing minerals. The
gangue has been release of the mineral carrier of titanium was approximately 1%
wt%, the denim has released more than 90% wt%. From the results it was
observed that it is possible to concentrate the TiO2 contained in the ore.
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