Experiments on the simultaneous partitioning of divalent metal ions between sphalerite or garnet and 2M aqueous chloride solutions under supercritical conditions

Etsuo Uchida, Michiyuki Fukuma, Fumitoshi Sato, Sho Endo

    Research output: Contribution to journalArticle

    Abstract

    Experiments on the simultaneous partitioning of divalent metal ions were performed in the systems (1) ZnS (sphalerite)-(Ni2+, Co2+, Fe2+, Mn2+, Cd2+)C12-H2O and (2) Mn3Al2Si3O12 (spessartine)-(Ni2+, Mg2+, Co2+, Zn2+, Fe2+, Ca2+)C12-H2O in the temperature range of 500 to 800°C at 1 kb. In the former system for ion partitioning in the 4-fold coordination, parabola-shaped PC-IR curves with a peak near Zn2+ were obtained and no anomaly was observed for Zn2+ and Ni2+ but Cd2+. In the latter system for ion partitioning in the 8-fold coordination, parabola-shaped PC-IR curves with a peak near Mn2+ were obtained, but Zn2+ deviates from such a trend and tends to concentrate into aqueous chloride solutions. The PC-IR curves for spessartine are gentle compared with those for sphalerite. The PC-IR curves both for spessartine and sphalerite become gentle with increasing temperature.

    Original languageEnglish
    Pages (from-to)151-162
    Number of pages12
    JournalJapanese Magazine of Mineralogical and Petrological Sciences
    Volume33
    Issue number4
    DOIs
    Publication statusPublished - 2004

    Fingerprint

    spessartine
    Garnets
    sphalerite
    Metal ions
    Chlorides
    garnet
    partitioning
    chloride
    ion
    metal
    Ions
    fold
    experiment
    Experiments
    temperature
    anomaly
    Temperature
    zinc sulfide
    co-ordination

    Keywords

    • Aqueous chloride solution
    • Garnet
    • Partition coefficient
    • Spessartine
    • Sphalerite
    • Supercritical condition

    ASJC Scopus subject areas

    • Geochemistry and Petrology
    • Economic Geology

    Cite this

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    title = "Experiments on the simultaneous partitioning of divalent metal ions between sphalerite or garnet and 2M aqueous chloride solutions under supercritical conditions",
    abstract = "Experiments on the simultaneous partitioning of divalent metal ions were performed in the systems (1) ZnS (sphalerite)-(Ni2+, Co2+, Fe2+, Mn2+, Cd2+)C12-H2O and (2) Mn3Al2Si3O12 (spessartine)-(Ni2+, Mg2+, Co2+, Zn2+, Fe2+, Ca2+)C12-H2O in the temperature range of 500 to 800°C at 1 kb. In the former system for ion partitioning in the 4-fold coordination, parabola-shaped PC-IR curves with a peak near Zn2+ were obtained and no anomaly was observed for Zn2+ and Ni2+ but Cd2+. In the latter system for ion partitioning in the 8-fold coordination, parabola-shaped PC-IR curves with a peak near Mn2+ were obtained, but Zn2+ deviates from such a trend and tends to concentrate into aqueous chloride solutions. The PC-IR curves for spessartine are gentle compared with those for sphalerite. The PC-IR curves both for spessartine and sphalerite become gentle with increasing temperature.",
    keywords = "Aqueous chloride solution, Garnet, Partition coefficient, Spessartine, Sphalerite, Supercritical condition",
    author = "Etsuo Uchida and Michiyuki Fukuma and Fumitoshi Sato and Sho Endo",
    year = "2004",
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    language = "English",
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    TY - JOUR

    T1 - Experiments on the simultaneous partitioning of divalent metal ions between sphalerite or garnet and 2M aqueous chloride solutions under supercritical conditions

    AU - Uchida, Etsuo

    AU - Fukuma, Michiyuki

    AU - Sato, Fumitoshi

    AU - Endo, Sho

    PY - 2004

    Y1 - 2004

    N2 - Experiments on the simultaneous partitioning of divalent metal ions were performed in the systems (1) ZnS (sphalerite)-(Ni2+, Co2+, Fe2+, Mn2+, Cd2+)C12-H2O and (2) Mn3Al2Si3O12 (spessartine)-(Ni2+, Mg2+, Co2+, Zn2+, Fe2+, Ca2+)C12-H2O in the temperature range of 500 to 800°C at 1 kb. In the former system for ion partitioning in the 4-fold coordination, parabola-shaped PC-IR curves with a peak near Zn2+ were obtained and no anomaly was observed for Zn2+ and Ni2+ but Cd2+. In the latter system for ion partitioning in the 8-fold coordination, parabola-shaped PC-IR curves with a peak near Mn2+ were obtained, but Zn2+ deviates from such a trend and tends to concentrate into aqueous chloride solutions. The PC-IR curves for spessartine are gentle compared with those for sphalerite. The PC-IR curves both for spessartine and sphalerite become gentle with increasing temperature.

    AB - Experiments on the simultaneous partitioning of divalent metal ions were performed in the systems (1) ZnS (sphalerite)-(Ni2+, Co2+, Fe2+, Mn2+, Cd2+)C12-H2O and (2) Mn3Al2Si3O12 (spessartine)-(Ni2+, Mg2+, Co2+, Zn2+, Fe2+, Ca2+)C12-H2O in the temperature range of 500 to 800°C at 1 kb. In the former system for ion partitioning in the 4-fold coordination, parabola-shaped PC-IR curves with a peak near Zn2+ were obtained and no anomaly was observed for Zn2+ and Ni2+ but Cd2+. In the latter system for ion partitioning in the 8-fold coordination, parabola-shaped PC-IR curves with a peak near Mn2+ were obtained, but Zn2+ deviates from such a trend and tends to concentrate into aqueous chloride solutions. The PC-IR curves for spessartine are gentle compared with those for sphalerite. The PC-IR curves both for spessartine and sphalerite become gentle with increasing temperature.

    KW - Aqueous chloride solution

    KW - Garnet

    KW - Partition coefficient

    KW - Spessartine

    KW - Sphalerite

    KW - Supercritical condition

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