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dc.contributor.authorDhar, Priyanka
dc.contributor.authorThornhill, Maria
dc.contributor.authorKota, Hanumantha Rao
dc.date.accessioned2021-09-20T07:52:25Z
dc.date.available2021-09-20T07:52:25Z
dc.date.created2018-11-10T16:37:05Z
dc.date.issued2018
dc.identifier.issn2524-3462
dc.identifier.urihttps://hdl.handle.net/11250/2779076
dc.description.abstractA very high-grade calcite deposit located in northern Norway consists of CaCO3 ore with minor silicate and sulphide impurities. Cationic (Tallow-1,3-diaminopropane, Duomeen T) collector has been used in the purification of calcite by flotation with an aim of achieving calcite concentrate for its use in value-added products in a variety of industries. The feasibility of sulphide flotation from calcite by this cationic collector has been initially judged from Hallimond flotation and zeta potential on pure mineral systems and the results illustrate the removal of sulphide from calcite ore at neutral pH region. The adsorption mechanism of diamine on both the sulphide minerals was found to be the same by zeta potential studies. The variations in zeta potential are in good agreement with the adsorption of diamine molecular and ionic species as a function of pH. FTIR studies also showed the adsorption of diamine species in agreement with the zeta potential and Hallimond flotation results. Furthermore, the removal of sulphide impurities with selective flotation by diamine collector was performed in bench-scale flotation with the calcite ore and the results indeed showed that the calcite concentrate could meet the quality requirements for its use in the paper industry for coating and filler purposes.en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.titlePurification of High-grade Calcite Ore by Flotation with Alkyl Diaminesen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.journalMining, Metallurgy & Exploration (MME)en_US
dc.identifier.doihttps://doi.org/10.1007/s42461-018-0002-1
dc.identifier.cristin1628974
dc.description.localcodeThis version of the article will not be available due to copyright restrictions (c) 2018 by Springeren_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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