MgO-C brick containing a novel graphite

Details MgO-C brick containing a novel graphite MgO-C brick containing a novel graphite

1992-11-25

1993-11-16

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501 97, 501109, 266280, C04B 3504, C04B 3554, C21B 706

Patent

active

052623670

ABSTRACT:
A mix for forming a magnesite-carbon refractory shape comprising from about 70 to 97 wt. % deadburned magnesite and about 3 to 30 wt. % flake 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 from 90 to 99 wt. % carbon and having a lime/silica ratio greater than 0.2 in its ash and said magnesite containing greater than 95 wt. % magnesia, and the resultant magnesite-carbon refractory shapes and liners for metal processing equipment made from such shapes and the method of increasing the life of liners for such equipment.

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