Production technology and quality of fused periclase

Conclusions A relationship was established between certain technological parameters, properties, and structural features of fused periclase.It was shown that the main factors in obtaining high quality periclase are the purity of the raw materials, determining the high MgO concentration in periclase; rational fusing cycle, ensuring migration of the impurities into the skin of the block and governing the features of the structure of the crystals; magnetic separation, permitting the ferromagnetic particles and part of the silicates to be removed; and crushing and milling, ensuring the optimum grain-size composition in the powder.A properly selected combination of these factors will improve the quality of the fused periclase and increase the resistance of periclase thermoelectric heating elements and refractories in service.Translated from Ogneupory, No. 2, pp. 5–10, February, 1979.