A study of the adsorption of collectors on bastnaesite

J. Zhang, D. An, J. Withers

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

Abstract

A nano-scale investigation has been carried out by applying an AFM (atomic force microscope) to study in situ the adsorption of various collectors, i.e., oleic acid, octanohydroxamic acid (HA), and salicylhydroxamic acid (SHA), on bastnaesite in aqueous solutions. The obtained AFM images show that the surface morphology of bastnaesite changes greatly after it contacts the solutions of the collectors, suggesting that all these collectors can effectively adsorb on bastnaesite. Increasing temperature can help increase the adsorption of oleic acid on bastnaesite. FTIR (Fourier transform infrared) results also show that all these collectors adsorb strongly on bastnaesite with a strong absorbance spectra being detected, which confirms with the results obtained with AFM imaging analysis. In general, hydroxamic acid collector (HA and SHA) adsorbs on bastnaesite mainly in the form of insoluble metal hydroxamate. This specific adsorption mechanism explains that a high selectivity with a moderate collectivity will be achieved with a hydroxamic acid collector for the flotation of bastnaesite.

Original languageEnglish (US)
Title of host publication2019 SME Annual Conference and Expo and CMA 121st National Western Mining Conference
PublisherSociety for Mining, Metallurgy and Exploration
ISBN (Electronic)9781510884663
StatePublished - Jan 1 2019
Event2019 SME Annual Conference and Expo and CMA 121st National Western Mining Conference - Denver, United States
Duration: Feb 24 2019Feb 27 2019

Publication series

Name2019 SME Annual Conference and Expo and CMA 121st National Western Mining Conference

Conference

Conference2019 SME Annual Conference and Expo and CMA 121st National Western Mining Conference
CountryUnited States
CityDenver
Period2/24/192/27/19

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Zhang, J., An, D., & Withers, J. (2019). A study of the adsorption of collectors on bastnaesite. In 2019 SME Annual Conference and Expo and CMA 121st National Western Mining Conference (2019 SME Annual Conference and Expo and CMA 121st National Western Mining Conference). Society for Mining, Metallurgy and Exploration.