Online measurement of factors influencing the electrostatic separation of mineral sands

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dc.contributor.authorLottering J.M.
dc.contributor.authorAldrich C.
dc.date.accessioned2011-05-15T15:59:46Z
dc.date.available2011-05-15T15:59:46Z
dc.date.issued2006
dc.description.abstractOperational factors influencing the electrostatic separation of mineral sands were investigated in a laboratory separator. Measurements were collected online by means of an optical sensor using diffused reflectance spectroscopy to determine the mineralogical composition. The results have shown that the roll speed and potential were die dominant operating variables, collectively explaining more than 83% and 68% of the product grade and yield, respectively. In contrast, the feed rate, temperature and position of the plate did not affect separation. The effect of the ambient relative humidity, ranging from 10% to 45%, could not be assessed conclusively and at best appeared to have a weakly beneficial effect on the product grade. © The South African Institute of Mining and Metallurgy, 2006.
dc.description.versionArticle
dc.identifier.citationJournal of The South African Institute of Mining and Metallurgy
dc.identifier.citation106
dc.identifier.citation4
dc.identifier.issn0038223X
dc.identifier.urihttp://hdl.handle.net/10019.1/11358
dc.subjectAtmospheric humidity
dc.subjectElectrostatic separators
dc.subjectMinerals
dc.subjectOptical sensors
dc.subjectProcess engineering
dc.subjectSpectroscopic analysis
dc.subjectDiffused reflectance spectroscopy
dc.subjectHigh tension roll separator
dc.subjectMineral sands
dc.subjectProcess modelling
dc.subjectSand
dc.titleOnline measurement of factors influencing the electrostatic separation of mineral sands
dc.typeArticle
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