Assessment of Three Spectroscopic Techniques for Rapid Estimation of Calcite in Copper Ore

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dc.contributor.authorEscarate, P.
dc.contributor.authorGuesalaga Meissner, Andrés
dc.contributor.authorAlbertini, Valerio Rossi
dc.contributor.authorBailo, Daniele
dc.date.accessioned2022-05-18T14:04:51Z
dc.date.available2022-05-18T14:04:51Z
dc.date.issued2010
dc.description.abstractThis paper presents the assessment of three spectroscopic techniques, i.e., Raman spectroscopy (RS), ultraviolet fluorescence (UVF) spectroscopy, and energy-dispersive X-ray diffraction (ED-XRD), for measuring calcite (CaCO3) concentration in copper ore. The results for the three methods are compared in terms of their correlation coefficient R2 and prediction error (root-mean-square error of prediction, RMSEP). These approaches substantially shorten the measurement time with respect to current laboratory procedures from 300 min down to 1,15, and 9 min for RS, ED-XRD, and UVF, respectively, while preserving a good accuracy level (RMSEP <
dc.description.abstract0.577). Prediction models were calibrated and validated for the three techniques, using the correlation coefficients Rc2 and Rv2, the error of prediction (RMSEP), and the error of calibration (root-mean-square error of calibration, RMSEC). Rv2 values of 0.90,0.88, and 0.94 were obtained for the RS, UVF, and ED-XRD models, respectively. The calibration and validation were performed for calcite concentrations ranging from 2.9% to 10.7%, and although the ED-XRD model performed slightly better than its RS counterpart, the time taken by the latter is significantly shorter than that by the other two, representing a good candidate for online estimation of calcite concentration.
dc.fuente.origenIEEE
dc.identifier.doi10.1109/TIM.2009.2028774
dc.identifier.eissn1557-9662
dc.identifier.issn0018-9456
dc.identifier.urihttps://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=5282560
dc.identifier.urihttps://doi.org/10.1109/TIM.2009.2028774
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/64123
dc.information.autorucEscuela de ingeniería ; Escarate, P. ; S/I ; 14884
dc.information.autorucEscuela de ingeniería ; Guesalaga Meissner, Andrés ; S/I ; 63871
dc.issue.numero7
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final1917
dc.pagina.inicio1911
dc.publisherIEEE
dc.revistaIEEE Transactions on Instrumentation and Measurement
dc.rightsacceso restringido
dc.subjectSpectroscopy
dc.subjectCopper
dc.subjectRaman scattering
dc.subjectCalibration
dc.subjectFluorescence
dc.subjectX-ray diffraction
dc.subjectEnergy measurement
dc.subjectCurrent measurement
dc.subjectTime measurement
dc.subjectLaboratories
dc.titleAssessment of Three Spectroscopic Techniques for Rapid Estimation of Calcite in Copper Orees_ES
dc.typeartículo
dc.volumen59
sipa.codpersvinculados14884
sipa.codpersvinculados63871
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