An AFM study of the adsorption of collector on bornite

Jinhong Zhang, W. Zhang

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

Abstract

The adsorption of collector on bomite 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 bomite mainly in the form of insoluble metal xanthate, which binds strongly with the mineral surface without being removed by flushing with ethanol alcohol. This adsorption mechanism is very similar to the one obtained with chalcocite/xanthate system. However, the result also clearly shows that the adsorption of xanthate on bomite is totally different from its adsorption on chaicopyrite, during which oily dixanthogen is the main adsorption product on chaicopyrite surface. The obtained AFM images also showed that the adsorption increases with increasing the collector's concentration. When Cytec Aerofloat 238, a dialkyl dithiophosphate collector, is used, it adsorb on bomite mainly in the form of an oily substance, which can be rinsed off mineral surface by flushing with ethanol alcohol. AFM images also show that the adsorption of Cytec Aerofloat 238 increases with increasing the adsorption time.

Original languageEnglish (US)
Title of host publication2016 SME Annual Conference and Expo
Subtitle of host publicationThe Future for Mining in a Data-Driven World
PublisherSociety for Mining, Metallurgy and Exploration
Pages604-610
Number of pages7
ISBN (Electronic)9781510825659
StatePublished - 2016
Event2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World - Phoenix, United States
Duration: Feb 21 2016Feb 24 2016

Other

Other2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World
CountryUnited States
CityPhoenix
Period2/21/162/24/16

Fingerprint

bornite
atomic force microscopy
Atomic force microscopy
adsorption
Adsorption
flushing
Minerals
Potassium
alcohol
ethanol
Alcohols
Ethanol
potassium
mineral
aqueous solution
Metals
metal

ASJC Scopus subject areas

  • Geology
  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology

Cite this

Zhang, J., & Zhang, W. (2016). An AFM study of the adsorption of collector on bornite. In 2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World (pp. 604-610). Society for Mining, Metallurgy and Exploration.

An AFM study of the adsorption of collector on bornite. / Zhang, Jinhong; Zhang, W.

2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World. Society for Mining, Metallurgy and Exploration, 2016. p. 604-610.

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

Zhang, J & Zhang, W 2016, An AFM study of the adsorption of collector on bornite. in 2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World. Society for Mining, Metallurgy and Exploration, pp. 604-610, 2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World, Phoenix, United States, 2/21/16.
Zhang J, Zhang W. An AFM study of the adsorption of collector on bornite. In 2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World. Society for Mining, Metallurgy and Exploration. 2016. p. 604-610
Zhang, Jinhong ; Zhang, W. / An AFM study of the adsorption of collector on bornite. 2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World. Society for Mining, Metallurgy and Exploration, 2016. pp. 604-610
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