MIXTURE FOR PERICLASE-SPINEL ITEMS PRODUCTION Russian patent published in 2009 - IPC C04B35/43 

FIELD: construction.

SUBSTANCE: periclase-spinel refractory items are manufactured from a mixture containing granular and disperse periclase, granular zirconium containing alumomagnesium spinel (containing 1-4 wt % TiO₂) and disperse zirconium containing additive in the form of baddeleyite or industrial zirconium dioxide at the following ratio of components, wt %: granular periclase as a basis, granular alumo-magnesium spinel (containing 1-4 wt % TiO₂) - 7-25, disperse periclase of 0.063-0 mm fractions - 10-36, disperse zirconium containing additive of 0.063-0 mm fraction - 0.6-5.5.

EFFECT: proposed periclase-spinel refractory items are provided with high mechanical strength and high stability to Portland cement clinker at high temperatures.

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