Effect of sodium metabisulfite on selective flotation of chalcopyrite and molybdenite

Yuki Semoto, Gde Pandhe Wisnu Suyantara, Hajime Miki, Keiko Sasaki, Tsuyoshi Hirajima, Yoshiyuki Tanaka, Yuji Aoki, Kumika Ura

研究成果: ジャーナルへの寄稿学術誌査読

7 被引用数 (Scopus)

抄録

Sodium metabisulfite (MBS) was used in this study for selective flotation of chalcopyrite and molybdenite. Microflotation tests of single and mixed minerals were performed to assess the floatability of chalcopyrite and molybdenite. The results of microflotation of single minerals showed that MBS treatment significantly depressed the floatability of chalcopyrite and slightly reduced the floatability of molybdenite. The results of microflotation of mixed minerals demonstrated that the MBS treatment could be used as a selective chalcopyrite depressant in the selective flotation of chalcopyrite and molybdenite. Furthermore, the addition of diesel oil or kerosene could significantly improve the separation efficiency of selective flotation of chalcopyrite and molybdenite using MBS treatment. A mechanism based on X-ray photoelectron spectroscopy analysis results is proposed in this study to explain the selective depressing effect of MBS on the flotation of chalcopyrite and molybdenite.

本文言語英語
論文番号1377
ジャーナルMinerals
11
12
DOI
出版ステータス出版済み - 12月 2021

!!!All Science Journal Classification (ASJC) codes

  • 地盤工学および土木地質学
  • 地質学

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