Energy dispersive X-ray diffraction spectroscopy for rapid estimation of calcite in copper ores

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dc.contributor.authorEscarate, P.
dc.contributor.authorBailo, D.
dc.contributor.authorGuesalaga, A.
dc.contributor.authorAlbertini, V. Rossi
dc.date.accessioned2024-01-10T13:48:03Z
dc.date.available2024-01-10T13:48:03Z
dc.date.issued2009
dc.description.abstractThis article presents a novel technique for measuring the concentration of calcite in copper ore samples using energy dispersive X-ray diffraction (ED-XRD). The results are compared with ultraviolet fluorescence spectroscopy (UVF) for the same group of samples. This approach substantially shortens the measuring time with respect to the current laboratory procedures from 300 min down to 15 min and 9 min for energy dispersive X-ray diffraction and ultraviolet fluorescence spectroscopy, respectively, while preserving a good accuracy level (RMSE < 0.577).
dc.description.abstractThe models used for data processing were calibrated and validated for both techniques via the correlation coefficients (R-c(2) and R-v(2)), the error of prediction (RMSEP) and the error of calibration (RMSEC). R-v(2) values between 0.88 and 0.94 were obtained for UVF and ED-XRD data. respectively. The calibration and validation were performed for calcite concentration ranges of 3.4-10.7% in the case of UVF and 2.9-7.6% for ED-XRD.
dc.description.abstractThe results reported show the potential of this method for on-line estimation of calcite concentration. (C) 2009 Elsevier Ltd. All rights reserved.
dc.description.funderCONICYT/PBCT Proyecto Anillo de Investigacion en Ciencia y Tecnologia
dc.fechaingreso.objetodigital03-04-2024
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.mineng.2009.01.009
dc.identifier.issn0892-6875
dc.identifier.urihttps://doi.org/10.1016/j.mineng.2009.01.009
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79329
dc.identifier.wosidWOS:000265566700007
dc.information.autorucIngeniería;Escarate P;S/I;14884
dc.information.autorucIngeniería;Guesalaga A ;S/I;63871
dc.issue.numero6
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final571
dc.pagina.inicio566
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.revistaMINERALS ENGINEERING
dc.rightsacceso restringido
dc.subjectCalcite
dc.subjectCopper
dc.subjectSpectroscopy
dc.subjectDiffraction
dc.subjectFluorescence
dc.titleEnergy dispersive X-ray diffraction spectroscopy for rapid estimation of calcite in copper ores
dc.typeartículo
dc.volumen22
sipa.codpersvinculados14884
sipa.codpersvinculados63871
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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