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Tracing of hydrothermal ore forming process in the ...

Tracing of forming in the Sorkhvand deposit, Kermanshah Province, Iran Alireza Zarasvandi1 & Houshang Pourkaseb1 & Masume Sepahvand1 & Johann Raith2 & …

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  • Hydrothermal Soft Chemical Process for Synthesis of ...

    Hydrothermal Soft Chemical Process for Synthesis of ...

    A soft chemical is used for the synthesis of oxides with tunnel structures. This comprises two steps: the first step is the preparation of a precursor with layered structure and insertion of templates structure-directing agents into its interlayer space by a soft chemical reaction [1], and the second step is the transformation of the template-inserted precursor into ...

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  • Geology, ore deposits and hydrothermal venting in Bahía ...

    Geology, ore deposits and hydrothermal venting in Bahía ...

     · The deposits of the study area are , epigenetic and consist in veins, stockworks and breccias hosted by volcanic rocks of the Comondú Group Oligocene‐Miocene and, locally, by Pliocene conglomerates, where the mineralization occurs as …

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  • CN101337692B - Method for producing manganese sulfate ...

    CN101337692B - Method for producing manganese sulfate ...

    A method for producing monohydrate manganous sulfate crystals comprises the steps of 1 finely grinding pyrolusite and iron pyrites 2 industrial acid sludge of titanium white as a leaching agent 3 leaching 4 adjusting the pH value of a suspension liquid after leaching , adding barium sulfide to deposit heavy metal 5 adjusting the pH value of the ...

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  • Preparation of manganese dioxide from low-grade pyrolusite ...

    Preparation of manganese dioxide from low-grade pyrolusite ...

     · This method does not any reductants, surfactants, templates or iron-containing chemical reagents. This is simple, easily operated, economical and reasonable. It achieves a high value-added utilization of resources, and it also reduces waste emissions, providing new technology and theoretical support for the efficient and comprehensive utilization of low-grade 2. Materials and methods 2.1. Materials. The low-grade …

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  • Geology and ore genesis data of Elba manganese deposits ...

    Geology and ore genesis data of Elba manganese deposits ...

    There are two types of deposits it can occur either as massive type or mangneferous sandstone type. • Mangneferous type which described by highest average values of SiO 2 >20%, Fe 2 O 3 >5.5%, Al 2 O 3 >2% lowest average values of MnO 28% and LOI 8.56%, less in resistance and associated with calcite.

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  • PDF Tracing of hydrothermal ore forming process in the ...

    PDF Tracing of hydrothermal ore forming process in the ...

    PDF | The Sorkhvand deposit is located in the Zagros thrust belt, close to the Kermanshah ophiolite mélange. This ophiolite records the early... | Find, read and cite all the research ...

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  • Hydrothermal manganese deposits in island arcs and related ...

    Hydrothermal manganese deposits in island arcs and related ...

     · Hydrothermal manganese deposits in island arcs and related to a possible model for genesis. Ore Geol. Rev., 4: 145-153. Submarine hydrothermal manganese deposits have recently been recovered from a number of island arc settings such as the Tonga-Kermadec Ridge, Ogasawa arc-trench, Bonin arc, Mariana arc and Bismarck Archipelago.

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  • Evidencestowards Hydrothermal Origin of Manganese …

    Evidencestowards Hydrothermal Origin of Manganese …

    altered either to high temperature -oxides or to silicates respectively. Roy [7], however, concluded that there was deposition of impure and pure sediments, and the later metamorphic are responsible for transforming these sediments to ‘Gondite’ and high temperature oxide bodies respectively.

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  • Geology and geochemistry of fault-hosted hydrothermal and ...

    Geology and geochemistry of fault-hosted hydrothermal and ...

    Highly variable Mn:Fe ratios ≫5:1 in the at Woodie Woodie reflects rapid deposition of Mn in and around fault zones. In contrast, slower accumulation of Mn oxides on and within the seafloor to form the large sedimentary deposits results in Mn:Fe ratios closer to 1:1 and elevated Co + Ni and REE values.

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  • Hydrothermal decomposition process of K-feldspar in NaOH ...

    Hydrothermal decomposition process of K-feldspar in NaOH ...

    This paper describes a novel method for preparing potassium sulfate and zeolite NaA from K-feldspar . The 3-step involves the decomposition of K-feldspar, the ...

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  • PAPER OPEN ACCESS Crystal and microstructure of MnFe 2O …

    PAPER OPEN ACCESS Crystal and microstructure of MnFe 2O …

    The procedure was quite similar to Section 2.1. The manganese ore was firstly grinded to pass through 200 mesh sieve. After cleaning processes, the manganese powder was oC for 24 hours. A typical 20 g of manganese ore was, then, dissolved in 12 M 50 ml HCl at a constant temperature ~60 oC and under stirring condition. Then the solution was filtered and transferred to the three necks …

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