Aluminous refractory composition

Details Aluminous refractory composition Aluminous refractory composition

1977-02-18

1978-09-12

Rutledge, L. Dewayne

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 65, C04B 700

Patent

active

041135024

ABSTRACT:
Refractory compositions containing alumina or aluminum silicate and a phosphate bonding agent can be improved by the addition of from 0.2 to 1.5 percent tetrasodium pyrophosphate (TSPP) in combination with bentonite. The TSPP minimizes the amount of bentonite required for good workability in aqueous formulations for ramming or hand applications, thereby miximizing density and minimizing water required for tempering, also extending the storage life of these refractories and maintaining a high percentage of initial workability over a period of several months.

REFERENCES:
patent: 1943584 (1934-01-01), Cross
patent: 3303034 (1967-02-01), Troell
patent: 3888687 (1975-06-01), Manigault
patent: 3998648 (1976-12-01), Thrower et al.
patent: 4056398 (1977-11-01), Rechter et al.

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