Comparison of selective flotation of chalcopyrite and molybdenite with various oxidation techniques

Tsuyoshi Hirajima, Hidekazu Matsuoka, Hajime Miki, Gde Pandhe Wisnu Suyantara, Ahmed Mohamed Elmahdy, Keiko Sasaki

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

Abstract

Selective flotation of chalcopyrite and molybdenite was studied using various surface treatment methods such as electrolysis, ozone treatment, and plasma. Oxidation via electrolysis method indicated that only chalcopyrite surface is affected by electrolysis due to conductivity difference with molybdenite. Oxidation treatments and XPS analyses indicated that chalcopyrite became hydrophilic due to deposition of oxidized iron on its surface. Various oxidizing methods also showed that chalcopyrite was selectively oxidized and this can apply selective flotation of chalcopyrite and molybdenite. The possible mechanisms are proposed in this work based on surface analyses and thermodynamic calculations.

Original languageEnglish
Title of host publicationIMPC 2016 - 28th International Mineral Processing Congress
PublisherCanadian Institute of Mining, Metallurgy and Petroleum
ISBN (Electronic)9781926872292
Publication statusPublished - Jan 1 2016
Event28th International Mineral Processing Congress, IMPC 2016 - Quebec City, Canada
Duration: Sep 11 2016Sep 15 2016

Publication series

NameIMPC 2016 - 28th International Mineral Processing Congress
Volume2016-September

Other

Other28th International Mineral Processing Congress, IMPC 2016
CountryCanada
CityQuebec City
Period9/11/169/15/16

All Science Journal Classification (ASJC) codes

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

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  • Cite this

    Hirajima, T., Matsuoka, H., Miki, H., Wisnu Suyantara, G. P., Elmahdy, A. M., & Sasaki, K. (2016). Comparison of selective flotation of chalcopyrite and molybdenite with various oxidation techniques. In IMPC 2016 - 28th International Mineral Processing Congress (IMPC 2016 - 28th International Mineral Processing Congress; Vol. 2016-September). Canadian Institute of Mining, Metallurgy and Petroleum.