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dc.contributor.authorPhiri, M.
dc.contributor.authorAldrich, Chris
dc.date.accessioned2017-01-30T14:38:45Z
dc.date.available2017-01-30T14:38:45Z
dc.date.created2015-05-04T20:00:27Z
dc.date.issued2014
dc.identifier.citationPhiri, M. and Aldrich, C. 2014. On-line monitoring of aqueous base metal solutions with transmittance spectrophotometry. Minerals Engineering. 61: pp. 23-31.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/39993
dc.identifier.doi10.1016/j.mineng.2014.02.011
dc.description.abstract

Transmittance spectrophotometry was used to monitor copper, cobalt and zinc in solution in laboratory experiments. The samples simulated plant conditions encountered on the Skorpion zinc mine in Namibia and were prepared using a simplex centroid mixture design. Principal component, partial least squares and support vector regression models were calibrated from visible and near infrared absorption spectra. All models could accurately estimate the concentrations of all the metals in solution. Although these models were affected by nickel contamination, the Cu models were less sensitive to this contamination than the Co and Zn models. Likewise, elevated temperatures led to degradation of the calibrated models, particularly the Zn models. The effects of these conditions could be visualized by a linear discriminant score plot of the spectral data.

dc.publisherElsevier
dc.titleOn-line monitoring of aqueous base metal solutions with transmittance spectrophotometry
dc.typeJournal Article
dcterms.source.volume61
dcterms.source.startPage23
dcterms.source.endPage31
dcterms.source.issn0892-6875
dcterms.source.titleMinerals Engineering
curtin.departmentWestern Australian School of Mines
curtin.accessStatusOpen access


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