Refractories from fused magnesite-chromite in the lining of a nickel converter

Refractories based on a fused magnesite-chromite material are 33–35% more durable than ordinary magnesite-chromite refractories. Their erosion depends to a slightly greater extent on spalling than on chemical dissociation. A relation exists between the pattern of impregnation with the converter melts and the development of cracks in the refractory.