Abstract
Investigations of the reaction of kaolin refractories with synthetic slag have shown that under isothermal conditions erosion of sintered kaolin refractories with a porosity of 12% by slag increases with a decrease in its basicity from 1.8 to 0.65. The corrosiveness of the slag increases with an increase in temperature from 1300 to 1500°C and with an increase in the FeO content; with an increase in the density of the refractory, its erosion by the slag decreases; the contact zone between the refractory and the synthetic slag has a complex mineral composition and consists of anorthite, pyroxene, magnetite, dicalcium ferrite, corundum, ferriferous spinellide of complex composition, etc; reaction of fused kaolin refractories with the slag is observed only at their contact, with formation of anorthite, magnetite, manganous spinel, and complex spinellides in the slag.
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