Carbon-containing refractory

Details Carbon-containing refractory Carbon-containing refractory

1985-01-16

1986-08-12

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501 90, 501 92, 501 97, 501 98, 501 99, 501100, 501101, C04B 3552, C04B 3554, C04B 3556, C04B 3558

Patent

active

046056351

ABSTRACT:
The present invention provides a carbon-containing refractory composition characterized by containing 0.1-10 parts by weight of silicon hexaboride in 100 parts by weight of refractory material comprising 3-95 parts by weight of carbonaceous material such as graphite and 97-5 parts by weight of refractory aggregate.
In the carbon-containing refractory composition of the present invention, silicon hexaboride is oxidized producing boron oxide on the surface of the refractory at a high temperature during operation, and the surface of the refractory is covered by the formation of a highly viscous molten liquid like kotoite (3 MgO.B.sub.2 O.sub.3), for example, which is formed from the components of the refractory, such as MgO, for example, thus particles of carbonaceous material such as graphite can be protected from oxidation.
The present invention therefore provides a refractory that has superior oxidation resistance which can be effectively utilized in such fields as metallurgy, pig iron production, steel production, etc.

REFERENCES:
patent: 3770487 (1973-11-01), Gibson et al.
patent: 4306030 (1981-12-01), Watanabe et al.
patent: 4471059 (1984-09-01), Yoshino et al.

Affiliated with

Also associated with

Rating

Carbon-containing refractory does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carbon-containing refractory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon-containing refractory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1935519