Coke oven patching and sealing material

Details Coke oven patching and sealing material Coke oven patching and sealing material

1980-01-14

1981-03-31

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 62, 106 65, 106 69, 106 84, C04B 3504

Patent

active

042591201

ABSTRACT:
A patching composition for developing a superior bond with silica refractories at temperatures of 1200.degree. to 2400.degree. F. The composition comprises three basic components: (1) a high melting phase, e.g. silica brick, fireclay grog, magnesia or high alumina grain, (2) a bonding component, e.g. sodium silicate and (3) a low melting phase, e.g. window glass. It will generally be desirable to employ a fourth component for fluxing, such as soda ash or other alkaline earth compounds. The improved results are achieved by the use primarily, of a low melting phase such as window glass, bulb glass or lead glass having a softening point between about 900.degree. and 1750.degree. F. (482.degree. to 954.degree. C.), employed in an amount of about 6 to 25% of the total solids composition.

REFERENCES:
patent: 2323029 (1943-06-01), Goodrich
patent: 2429872 (1947-10-01), Downs

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