An AFM study of the adsorption of amyl xanthate on copper sulfides

Jinhong Zhang, Wei Zhang

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


In froth flotation, the adsorption of collector on mineral surface is critical for a successful flotation process. In present work, an atomic force microscopy (AFM) has been applied to study the adsorption of potassium amyl xanthate (PAX) on copper sulfides, i.e., chalcopyrite, chalcocite and bornite. The in-situ collected AFM images show that PAX adsorbs on chalcopyrite mainly in the form of oily dixanthogen; while it strongly adsorbs on chalcocite and bornite in the form of insoluble metal xanthate, which binds strongly with the mineral surface. The information obtained from the AFM study shed lights on the collectivity and therefore the selection of specific collector for different copper sulfide minerals in industrial practice.

Original languageEnglish (US)
Title of host publicationIMPC 2018 - 29th International Mineral Processing Congress
PublisherCanadian Institute of Mining, Metallurgy and Petroleum
Number of pages12
ISBN (Electronic)9787030227119
StatePublished - Jan 1 2019
Event29th International Mineral Processing Congress, IMPC 2018 - Moscow, Russian Federation
Duration: Sep 17 2018Sep 21 2018


Other29th International Mineral Processing Congress, IMPC 2018
CountryRussian Federation


  • Adsorption
  • AFM
  • Bornite
  • Chalcocite
  • Chalcopyrite
  • Copper sulfide
  • PAX
  • Xanthate

ASJC Scopus subject areas

  • Mechanical Engineering
  • Earth-Surface Processes
  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology

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