Specialized metallurgical processes – compositions for use therei – Compositions – Reactive furnace lining
Reexamination Certificate
2007-09-04
2010-11-02
Marcantoni, Paul (Department: 1793)
Specialized metallurgical processes, compositions for use therei
Compositions
Reactive furnace lining
C266S280000, C266S284000, C264S333000, C106S692000
Reexamination Certificate
active
07824464
ABSTRACT:
The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula CnAxwherein 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 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. A method for improving the insulating character and/or penetration resistance of a liner in contact with molten aluminum in an aluminum manufacturing process or during aluminum transport is provided.
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Buchanan & Ingersoll & Rooney PC
Cochenour Craig G.
Marcantoni Paul
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