Surface charge and floatability of chromites from various localities. Fundamental studies on mineral processing of chromites (4th report)

Shuji Owada, Taneomi Harada

    研究成果: Article

    1 引用 (Scopus)

    抄録

    The difference in surface charge and the floatability of chromites from various localities were clarified, and the relationship between mineralogical properties and these characteristics was investigated. The following is a summary of the results obtained. (1) Although the zeta-potential of chromites is influenced by gangue minerals accompanying them and the existence of metal ions in the chromite-water system, the i.e.p. (isoelectric point) of pure chromite which has a fresh surface is around pH 8.0 regardless of chemical composition. (2) There is considerable difference in floatability among the chromites investigated, which is greatly influenced by surface charge in the case of DAC and SDS as collectors. In addition, surface structure and crystallinity also produce an effect on floatability, that is, non-homogeneity of the surface and internal structure tends to depress floatability. The optimum particle size of a chromite is in the flotation range of 60-100 μm, with the floatability diminishing out of this range.

    元の言語English
    ページ(範囲)381-386
    ページ数6
    ジャーナルMetallurgical Review of MMIJ (Mining and Metallurgical Institute of Japan)
    104
    発行部数1204
    出版物ステータスPublished - 1988 6

    Fingerprint

    Chromite
    Ore treatment
    Surface charge
    Zeta potential
    Flotation
    Surface structure
    Minerals
    Metal ions
    Particle size
    Water
    Chemical analysis

    ASJC Scopus subject areas

    • Metals and Alloys

    これを引用

    @article{2de166a956194e98aeae292244b3d7ef,
    title = "Surface charge and floatability of chromites from various localities. Fundamental studies on mineral processing of chromites (4th report)",
    abstract = "The difference in surface charge and the floatability of chromites from various localities were clarified, and the relationship between mineralogical properties and these characteristics was investigated. The following is a summary of the results obtained. (1) Although the zeta-potential of chromites is influenced by gangue minerals accompanying them and the existence of metal ions in the chromite-water system, the i.e.p. (isoelectric point) of pure chromite which has a fresh surface is around pH 8.0 regardless of chemical composition. (2) There is considerable difference in floatability among the chromites investigated, which is greatly influenced by surface charge in the case of DAC and SDS as collectors. In addition, surface structure and crystallinity also produce an effect on floatability, that is, non-homogeneity of the surface and internal structure tends to depress floatability. The optimum particle size of a chromite is in the flotation range of 60-100 μm, with the floatability diminishing out of this range.",
    author = "Shuji Owada and Taneomi Harada",
    year = "1988",
    month = "6",
    language = "English",
    volume = "104",
    pages = "381--386",
    journal = "Metallurgical Review of MMIJ (Mining and Metallurgical Institute of Japan)",
    issn = "0289-6214",
    publisher = "Mining and Materials Processing Institute of Japan",
    number = "1204",

    }

    TY - JOUR

    T1 - Surface charge and floatability of chromites from various localities. Fundamental studies on mineral processing of chromites (4th report)

    AU - Owada, Shuji

    AU - Harada, Taneomi

    PY - 1988/6

    Y1 - 1988/6

    N2 - The difference in surface charge and the floatability of chromites from various localities were clarified, and the relationship between mineralogical properties and these characteristics was investigated. The following is a summary of the results obtained. (1) Although the zeta-potential of chromites is influenced by gangue minerals accompanying them and the existence of metal ions in the chromite-water system, the i.e.p. (isoelectric point) of pure chromite which has a fresh surface is around pH 8.0 regardless of chemical composition. (2) There is considerable difference in floatability among the chromites investigated, which is greatly influenced by surface charge in the case of DAC and SDS as collectors. In addition, surface structure and crystallinity also produce an effect on floatability, that is, non-homogeneity of the surface and internal structure tends to depress floatability. The optimum particle size of a chromite is in the flotation range of 60-100 μm, with the floatability diminishing out of this range.

    AB - The difference in surface charge and the floatability of chromites from various localities were clarified, and the relationship between mineralogical properties and these characteristics was investigated. The following is a summary of the results obtained. (1) Although the zeta-potential of chromites is influenced by gangue minerals accompanying them and the existence of metal ions in the chromite-water system, the i.e.p. (isoelectric point) of pure chromite which has a fresh surface is around pH 8.0 regardless of chemical composition. (2) There is considerable difference in floatability among the chromites investigated, which is greatly influenced by surface charge in the case of DAC and SDS as collectors. In addition, surface structure and crystallinity also produce an effect on floatability, that is, non-homogeneity of the surface and internal structure tends to depress floatability. The optimum particle size of a chromite is in the flotation range of 60-100 μm, with the floatability diminishing out of this range.

    UR - http://www.scopus.com/inward/record.url?scp=0024019422&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0024019422&partnerID=8YFLogxK

    M3 - Article

    AN - SCOPUS:0024019422

    VL - 104

    SP - 381

    EP - 386

    JO - Metallurgical Review of MMIJ (Mining and Metallurgical Institute of Japan)

    JF - Metallurgical Review of MMIJ (Mining and Metallurgical Institute of Japan)

    SN - 0289-6214

    IS - 1204

    ER -