Alumina hollow ball is a great heat insulating material.

    Alumina hollow ball si a new kind of heat insulating material, it is labor in the eaf melting aluminum s blowing in the crystal shape, and for a Al2O3 nanocrystal. In alumina bubble can be made for the subject, the use of various shapes, the highest temperature1800 ° c, the products of high mechanical strength, for general light products, and the number of times the volume density is only one half of corundum products. In the gasifier, petrochemical industry, metallurgy industry, carbon industry reactor furnace temperature, such hi-temp extensively, made satisfactory effect in energy saving.

Chemical compositions

 AL2O3   99%min

SiO2   0.2max

Na2O  0.2max

Fe2O3  0.15max

Packing density(g/m3) 0.5-1.0

Particle size(mm) 0.2-5

Usaged:

Alumina hollow ball is used in the thermal insulation layer of high temperature area of kiln for petrochemical industry, lining of ceramic kiln.

Alumina hollow ball