MgO-spinel refractory mix and shapes made therefrom
AssigneeIndresco Inc.
InventorRichard J. Knauss
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Abstract
A refractory mix and resultant shapes formed by burning the mix, the mix comprising a magnesia-alumina spinel grain containing at least 27% MgO by weight, a fused magnesite grain, and up to 10% by weight alumina, it being possible to substitute a sintered magnesite grain for up to 50% by weight of the fused magnesite grain.
Claims8
A refractory mix for forming shaped refractories consisting essentially of 10 to 40% by weight of a magnesia-alumina spinel grain containing at least 28% MgO by weight, 60 to 90% by weight of a fused magnesite grain and up to 10% by weight alumina.
A refractory shape formed by burning a mix consisting essentially of 10 to 40% by weight of a magnesia-alumina spinel grain containing at least 28% MgO by weight, 60 to 90% by weight of a fused magnesite grain and up to 10% by weight alumina.
Dependencies are inferred from the claim text.