The Corrosion of Superstructure Refractories by Batch Materials

JSGT 1956 V40 T499-T508

A test has been devised to corrode superstructure refractories with batch material under conditions similar to those encountered in glass furnaces. The tests have shown that boric oxide is less corrosive than sodium carbonate or borax; silica materials are badly attacked by sodium carbonate, borax, and soda–lime glass batch; zircon is not attacked by boric oxide, but badly attacked by sodium carbonate; zirconia mullite and fusion-cast zirconia-corundum were both very resistant to attack; in all cases the porosity of the material was a very important factor affecting the degree of corrosion.

T. S. Busby