Prefabricated part made of vitreous fused silica for use as a re

Details Prefabricated part made of vitreous fused silica for use as a re Prefabricated part made of vitreous fused silica for use as a re

1995-07-24

1999-03-23

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 44, 501133, 106692, C03C 300

Patent

active

058859136

ABSTRACT:
A prefabricated part made of vitreous fused silica for use as a refractory, and in particular, for use in repairing coke ovens, which contains over 90% by weight of SiO.sub.2. The prefabricated part includes about 20 to 50% by weight of vitreous fused silica having 1 to 6 mm grain size, 20 to 40% by weight of vitreous fused silica having 0.1 to 1 mm grain size, 15 to 35% by weight of finely ground vitreous fused silica having grains less than 0.1 mm in size, 1 to 10% of finely ground vitreous fused silica having a specific surface area according to BET larger than 20 m.sup.2 per gram, 1 to 10% by weight of cement and 0.1 to 8% by weight of a phosphorous compound.

REFERENCES:
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patent: 2958604 (1960-11-01), George
patent: 3814613 (1974-06-01), Hubble
patent: 4135939 (1979-01-01), Campana
patent: 4162179 (1979-07-01), Campana
patent: 4230498 (1980-10-01), Rueckl
patent: 4259120 (1981-03-01), Rueckl

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