PERICLASE - SPINELLED REFRACTORY MATERIAL Russian patent published in 2009 - IPC C04B35/47 

FIELD: construction.

SUBSTANCE: suggested periclase - spinelled refractory material containing molten chromiferous filler and dispersed periclase powder contains molten chromitopericlase at the weight ratio MgO/Cr₂O₃ 2.5-5.0 and AlO₃/Cr₂O₃ 0.10-0.20 with maximum grains size of 6 mm and fineness modulus 2.0-2.4 as chromiferous filler and molten periclase with specific area 1.2-2.5 m²/g as dispersed periclase powder at the following components ratio, wt %: molten chromitopericlase - base, dispersed molten periclase - 15-30.

EFFECT: increased high - temperature strength of periclase - spinelled refractory materials, lowered thermal conduction, improved stability to the action of steel and slag fusion.

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