Synthesis of Spinel from Caustic Magnesite and Alumina Dust

The sintering of a mixture of a caustic dust and an alumina dust collected from the electric filters taken in MgO/Al2O3 ratios of 0.1, 0.28, 0.5, and 0.75 at 1650 C was studied. Materials with superior physicomechanical properties were obtained: open porosity, 1.2-8.4%; density, more than 3.5 g/cm3,...

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Bibliographic Details
Published in:Refractories and industrial ceramics 2003-09, Vol.44 (5), p.301-305
Main Authors: Kashcheev, I D, Kamenskikh, V A, Zemlyanoi, K G, Shatilov, O F, Koptelov, V N, Ponomarev, D V
Format: Article
Language:English
Subjects:
Alkalies
Aluminum oxide
Compressive strength
Density
Dust
Dust control
Dust filters
Electric filters
Magnesium oxide
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Summary:The sintering of a mixture of a caustic dust and an alumina dust collected from the electric filters taken in MgO/Al2O3 ratios of 0.1, 0.28, 0.5, and 0.75 at 1650 C was studied. Materials with superior physicomechanical properties were obtained: open porosity, 1.2-8.4%; density, more than 3.5 g/cm3, and compressive strength of 160-410 MPa. High-density pellets (free of additions) were prepared at a MgO/Al2O3 ratio of 0.75, with compressive strength as high as 160 MPa. 5 refs.
ISSN:1083-4877
1573-9139
DOI:10.1023/B:REFR.0000009035.42862.d4