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- W2889846794 abstract "Bauxite is the main raw material used for the production of alumina (Al2O3) through the well-known commercial Bayer process. This process has significant challenges such as limitation in using low-grade bauxites as they contain significant amounts of impurities such as Fe, Si, Ti. The Bayer process residue, which is known as red mud, is also a global environmental challenge due to huge amount of this low value residue production. An alternative sustainable process with high potential to solve these problems and produce valuable and consumable by-products is a pyrometallurgical-hydrometallurgical process in which the low-grade bauxite ore is treated through a smelting-reduction process, yielding iron alloys and a calcium-aluminate slag. Alumina is then produced from the slag by hydrometallurgical treatment. In the present work, the reduction of pellets produced from different bauxite ores by hydrogen is studied and it is shown that complete iron oxides reduction is possible. Further smelting and smelting-aluminothermic reduction of the reduced pellets show that iron and silicon ferroalloys can be produced, in addition to a proper slag for alumina extraction." @default.
- W2889846794 created "2018-09-27" @default.
- W2889846794 creator A5042270077 @default.
- W2889846794 date "2018-01-01" @default.
- W2889846794 modified "2023-09-27" @default.
- W2889846794 title "Extraction of Iron and Ferrosilicon Alloys from Low-Grade Bauxite Ores" @default.
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- W2889846794 doi "https://doi.org/10.1007/978-3-319-95022-8_66" @default.
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