Applying analysis of mineral surfaces to predict flotation behavior

H. Matsuoka, R. Kawarabuki, K. Mitsuhashi, M. Kawata, Chiharu Tokoro, K. Haga, A. Shibayama

    研究成果: Conference contribution

    抄録

    The mineral surface characteristic is important for the flotation because it affects the flotation behavior of the mineral. Conventionally, in the flotation process for Cu sulphide ores, the degree of ore floatabilities varies depending on the mineral phase such as chalcopyrite, bornite, or chalcocite. Therefore, mineral surfaces are treated with activators and depressants to control the floatability of target minerals and obtain high recovery performance. There are lots of flotation reagents which have many effects on ores depending on ore characteristics and conditioning methods. For example, sodium hydrosulphide (NaHS) as activator is known to have the effect of re-sulfurizing and activating oxidized surface of chalcocite and bornite. On the other hand, NaHS is reported to depress chalcopyrite floatability. In this study, the evaluation of mineral surfaces was conducted to predict flotation behavior. Activation of Cu minerals (chalcocite, bornite, and chalcopyrite) by NaHS was experimented. The three Cu minerals were treated in two steps. Firstly, they were oxidized in the drying oven. Secondly, they were treated with NaHS solution. After each treatment step, each mineral was measured by contact angle apparatus then analyzed by X-ray photoelectron spectroscopy (XPS). The results of surface characteristics after oxidation and NaHS treatment were utilized to accomplish the study's objective.

    元の言語English
    ホスト出版物のタイトルIMPC 2018 - 29th International Mineral Processing Congress
    出版者Canadian Institute of Mining, Metallurgy and Petroleum
    ページ1481-1488
    ページ数8
    ISBN(電子版)9787030227119
    出版物ステータスPublished - 2019 1 1
    イベント29th International Mineral Processing Congress, IMPC 2018 - Moscow, Russian Federation
    継続期間: 2018 9 172018 9 21

    Other

    Other29th International Mineral Processing Congress, IMPC 2018
    Russian Federation
    Moscow
    期間18/9/1718/9/21

    Fingerprint

    Flotation
    Minerals
    mineral
    bornite
    Ores
    chalcopyrite
    analysis
    flotation
    Sulfides
    Ovens
    conditioning
    X-ray spectroscopy
    Contact angle
    sodium bisulfide
    Drying
    X ray photoelectron spectroscopy
    Chemical activation
    Sodium
    sulfide
    sodium

    ASJC Scopus subject areas

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

    これを引用

    Matsuoka, H., Kawarabuki, R., Mitsuhashi, K., Kawata, M., Tokoro, C., Haga, K., & Shibayama, A. (2019). Applying analysis of mineral surfaces to predict flotation behavior. : IMPC 2018 - 29th International Mineral Processing Congress (pp. 1481-1488). Canadian Institute of Mining, Metallurgy and Petroleum.

    Applying analysis of mineral surfaces to predict flotation behavior. / Matsuoka, H.; Kawarabuki, R.; Mitsuhashi, K.; Kawata, M.; Tokoro, Chiharu; Haga, K.; Shibayama, A.

    IMPC 2018 - 29th International Mineral Processing Congress. Canadian Institute of Mining, Metallurgy and Petroleum, 2019. p. 1481-1488.

    研究成果: Conference contribution

    Matsuoka, H, Kawarabuki, R, Mitsuhashi, K, Kawata, M, Tokoro, C, Haga, K & Shibayama, A 2019, Applying analysis of mineral surfaces to predict flotation behavior. : IMPC 2018 - 29th International Mineral Processing Congress. Canadian Institute of Mining, Metallurgy and Petroleum, pp. 1481-1488, 29th International Mineral Processing Congress, IMPC 2018, Moscow, Russian Federation, 18/9/17.
    Matsuoka H, Kawarabuki R, Mitsuhashi K, Kawata M, Tokoro C, Haga K その他. Applying analysis of mineral surfaces to predict flotation behavior. : IMPC 2018 - 29th International Mineral Processing Congress. Canadian Institute of Mining, Metallurgy and Petroleum. 2019. p. 1481-1488
    Matsuoka, H. ; Kawarabuki, R. ; Mitsuhashi, K. ; Kawata, M. ; Tokoro, Chiharu ; Haga, K. ; Shibayama, A. / Applying analysis of mineral surfaces to predict flotation behavior. IMPC 2018 - 29th International Mineral Processing Congress. Canadian Institute of Mining, Metallurgy and Petroleum, 2019. pp. 1481-1488
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