AN AFM study of the adsorption of collector on chalcocite

Jinhong Zhang, W. Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The adsorption of collector on chalcocite has been studied in situ in aqueous solutions by applying an atomic force microscopy (AFM). The AFM images show that xanthate, such as potassium ethyl xanthate (KEX) and potassium amyl xanthate (PAX), adsorbs strongly on chalcocite mainly in the form of insoluble metal xanthate, which binds strongly with the mineral surface without being removed by flushing with ethanol alcohol. The result clearly shows that the adsorption of xanthate on chalcocite is totally different from its adsorption on chalcopyrite, during which oily dixanthogen is the main adsorption product on chalcopyrite surface. AFM images also showed that increasing solution pH to 10 doesn't prevent the adsorption of xanthate on chalcocite much and the result confirms with the fact that chalcocite floats well in a wide pH range up to 12 with xanthate being used as a collector.

Original languageEnglish (US)
Title of host publication2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining
Subtitle of host publicationNavigating the Global Waters
PublisherSociety for Mining, Metallurgy and Exploration
Pages634-640
Number of pages7
ISBN (Electronic)9781510801240
StatePublished - 2015
Event2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters - Denver, United States
Duration: Feb 15 2015Feb 18 2015

Other

Other2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters
CountryUnited States
CityDenver
Period2/15/152/18/15

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Zhang, J., & Zhang, W. (2015). AN AFM study of the adsorption of collector on chalcocite. In 2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters (pp. 634-640). Society for Mining, Metallurgy and Exploration.