Recycling Bauxite Waste for the Mineral Industry: Phase Transformations and Microstructure During Sintering
| Autor: | Jacques Poirier, Rudy Michel, E. de Bilbao |
|---|---|
| Přispěvatelé: | Conditions Extrêmes et Matériaux : Haute Température et Irradiation (CEMHTI), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université d'Orléans (UO) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Environmental Engineering Materials science Renewable Energy Sustainability and the Environment Aluminate Metallurgy Sintering 02 engineering and technology [CHIM.MATE]Chemical Sciences/Material chemistry engineering.material Raw material 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Bauxite chemistry.chemical_compound chemistry 0103 physical sciences Particle-size distribution engineering Particle size Comminution 0210 nano-technology Waste Management and Disposal ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Waste and Biomass Valorization Waste and Biomass Valorization, Springer, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2018, 9 (7), pp.1261-1271. ⟨10.1007/s12649-016-9775-y⟩ Waste and Biomass Valorization, Springer, 2018, 9 (7), pp.1261-1271. ⟨10.1007/s12649-016-9775-y⟩ |
| ISSN: | 1877-2641 1877-265X |
| DOI: | 10.1007/s12649-016-9775-y⟩ |
| Popis: | Raw materials of mineral industries are mainly in the form of ore, which generate fine mineral particles during the extraction, comminution and transport which are primarily regarded as non-recyclable waste. The aim of this paper is to develop and characterize materials using recycled fine particles of bauxite sintered at high temperature at a laboratory scale for the calcium aluminate industry. To use these recycled materials as raw materials, the physico-chemical transformations during high-temperature processing are described. Phase transformations as a function of temperature were determined by XRD, and optical and electronic microscopies were utilized to observe microstructures. Materials with different particle size distributions showed different chemical reactivity as a function of particle size. The optimization of particle size distribution makes it possible to substitute synthetic bricks for bauxite ore using recycled fine particles of bauxite. |
| Databáze: | OpenAIRE |
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