Abstract
The coming into effect of new technical conditions and amended (higher) prices for magnesite articles, allowing for increased economic effectiveness, has provided the basis for the introduction of processes for thermal-insulation periclase refractories based on porous powders obtained by firing a mixture of caustic dust and raw magnesite or dust alone. This will make it possible to more effectively utilize the caustic dust which is removed from the effluent gas, to increase the productivity of the rotary furnaces in relation to prepared powder, to reduce the consumption of raw materials and fuel, to lower the number of articles rejected for hydration cracks, and to decrease heat loss through the lining of metallurgical furnaces.
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