Calcium aluminate clinker as a refractory aggregate with and without barium addition and use thereof
OwnerKenneth A. McGowaninventor
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Abstract
The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula CnAx wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has less less than about fifty weight percent C12A7. Analogs, derivatives and hydrates of the improved calcium aluminate clinker are provided. A refractory composition and a sprayable refractory composition are disclosed comprising the improved calcium aluminate clinker.
Claims48
A refractory aggregate composition consisting essentially of:
- an aggregate consisting essentially of a calcium aluminate clinker having the formula CnAx wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has from zero to less than fifty weight percent C12A7, and wherein greater than 98 weight percent of said calcium aluminate clinker having a particle size ranging from 325 mesh to +10 mesh.
A refractory composition comprising:
- a refractory aggregate consisting essentially of a calcium aluminate clinker having the formula CnAx, wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said calcium aluminate clinker has from zero to less than about fifty weight percent C12A7, and wherein greater than 98 weight percent of said calcium aluminate clinker having a particle size ranging from 325 mesh to +10 mesh.
A sprayable refractory composition comprising:
- (a) a pumpable first component comprising (i) a refractory composition comprising a refractory aggregate consisting essentially of a calcium aluminate clinker having the formula CnAx, wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said calcium aluminate clinker has from zero to less than fifty weight percent C12A7, and wherein greater than 98 weight percent of said calcium aluminate clinker having a particle size ranging from 325 mesh to +10 mesh, and a calcium aluminate cement, (ii) a dispersant, and water in an amount sufficient to achieve a pumpable consistency, and optionally (b) a second component comprising a flocculating agent, wherein said second component is added to said first component for achieving installation of said sprayable refractory composition.
Dependencies are inferred from the claim text.