Magnesite-carbon refractories

Details Magnesite-carbon refractories Magnesite-carbon refractories

1988-11-21

1990-03-27

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

266280, 266286, C04B 3554, C04B 3504

Patent

active

049120689

ABSTRACT:
A mix for forming a carbon-bonded refractory shape comprising from about 70 to 92 wt. % of a high purity magnesite and about 8 to 30 wt. % of a high purity graphite, and for each 100 wt. % of said magnesite and graphite, from about 1.5 to 6 wt. % of a carbon-containing bonding agent; said graphite containing at least about 98% carbon and having at least about 75% by weight -65 mesh or finer particles and said magnesite containing at least about 98% MgO, and containing less than about 0.03% boron oxide, less than about 0.3% silica, and having a CaO/SiO.sub.2 weight ratio above about 2, and the resultant carbon-bonded refractory shape and liner for basic oxygen furnaces made from such shapes and the method of increasing the life of liners for basic oxygen furnaces.

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Talkabutsu Overseas, vol. 3, No. 4, pp. 3 to 13, no date.
Talkabutsu Overseas, vol. 6, No. 1, pp. 11 to 15, no date.

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