Synthesis of Spinel from Caustic Magnesite and Alumina Dust |
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| Authors: | I D Kashcheev V A Kamenskikh K G Zemlyanoi O F Shatilov V N Koptelov D V Ponomarev |
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| Affiliation: | (1) (Ural Polytechnical Institute), Ural State Technical University, Ekaterinburg, Russia;(2) Kombinat Magnezit Joint-Stock Co., Satka, Chelyabinsk Region, Russia |
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| Abstract: | The sintering of a mixture of a caustic dust and an alumina dust collected from electric filters taken in MgO/Al2O3 ratios of 0.1, 0.28, 0.5, and 0.75 at 1650°C is studied. Materials with superior physicomechanical properties are obtained: open porosity, 1.2 – 8.4%; density, more than 3.5 g/cm3, and compressive strength, 160 – 410 MPa. High-density pellets (free of additions) are prepared at a MgO/Al2O3 ratio of 0.75, with compressive strength as high as 160 MPa. |
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