The Mineralogy of some Corroded Firebricks from Glass Tank Furnace Regenerators

JSGT 1950 V34 T134-T152

The paper deals with the mineralogy of a number of used alumina–silica and magnesite glass-tank checker bricks. Phases encountered in the corroded portions of the firebricks include nephelite (optically, negative and positive), carnegieite, corundum, ,8-alumina, lazurite, gehlenite and spinels. Two varieties of corrosion mechanism are noted, namely, (1) when a viscous fluid forms and carpets the brick surface and (2) when the refractory is attacked without widespread formation of a silicate melt.

Leslie Bor