• Bauxite Mining and Alumina Refining: Process Description ...

    Bauxite Bauxite is not a mineral, but rather a group of aluminum oxide s. The term is generally used to describe the economically important mixture of these minerals, which form a mass of the individually classified members of Gibbsite, Boehmite, and Diaspore.

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  • Bauxite - Wikipedia

    Bauxite is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium. Bauxite consists mostly of the aluminium minerals gibbsite, boehmite and diaspore, mixed with the two iron oxides goethite and haematite, the aluminium clay mineral kaolinite and small amounts of anatase and ilmenite. In 1821 the French geologist Pierre Berthier discovered bauxite near the …

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  • Bauxite: The principal ore of aluminum.

    Bauxite Ore Bauxite Ore Specification Product Description Bauxite (aluminous soil; Bauxite) is also called the alumina or bauxite, main ingredients are alumina, hydrated alumina containing impurities, is an earthy mineral. White or gray, brown and yellow or light red by iron. Insoluble in water, soluble in …

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  • Bayer process - Wikipedia

    Bauxite ore is a mixture of hydrated aluminium oxides and compounds of other elements such as iron. The aluminium compounds in the bauxite may be present as gibbsite 2(Al(OH) 3), boehmite (γ-AlO(OH)) or diaspore (α-AlO(OH)); the different forms of the aluminium component and the impurities dictate the extraction conditions.

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  • Mining and Refining – Process

    The bauxite is washed and crushed, reducing the particle size and increasing the available surface area for the digestion stage. Lime and "spent liquor" (caustic soda returned from the precipitation stage) are added at the mills to make a pumpable slurry.

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  • Bauxite | ore | Britannica.com

    ore Bauxite, rock largely composed of a mixture of hydrous aluminum oxides. Bauxite is the principal ore of aluminum.

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  • Extraction Process of Aluminium from Bauxite Ore

    Bauxite refers to the materials with the main ore of gibbsite, bodhmite, and diaspore. The application field of it has metal and nonmetal. Bauxite is the best material in making aluminum and the ingredient of refractory, grinding material, chemical material, and calcium aluminate cement.

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