TY - GEN
T1 - Comparison of selective flotation of chalcopyrite and molybdenite with various oxidation techniques
AU - Hirajima, Tsuyoshi
AU - Matsuoka, Hidekazu
AU - Miki, Hajime
AU - Wisnu Suyantara, Gde Pandhe
AU - Elmahdy, Ahmed Mohamed
AU - Sasaki, Keiko
N1 - Funding Information:
We appreciate support by Sumitomo Metal Mining, Co., Ltd., and by a Grant-in-Aid for Science Research (JSPS KAKENHI, 15H02333 and 26·04378) from Japan Society for the Promotion of Science (JSPS).
Publisher Copyright:
© 2016 TAPPI Press. All rights reserved.
PY - 2016
Y1 - 2016
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:85048370143
T3 - IMPC 2016 - 28th International Mineral Processing Congress
BT - IMPC 2016 - 28th International Mineral Processing Congress
PB - Canadian Institute of Mining, Metallurgy and Petroleum
T2 - 28th International Mineral Processing Congress, IMPC 2016
Y2 - 11 September 2016 through 15 September 2016
ER -