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White fused alumina(WFA), a kind of high-grade refractories, is made from the imported quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase a-AL2O3. The white alumina produced in the titling electric arc furnace has the advantage of high bulk density and low porosity, thus the volume stability and thermal shock resistance can be improved.Application:

AS REFRACTORIES

White fused alumina is the main starting material to produce high-grade unshaped refractories and is widely-used in the field of iron&steel industry, cement industry, ceramics, petrochemical industry, etc. It is the ideal starting material to produce the unshaped refractories such as large ladle castables, medium and high grade BF through castables, gunning materials, pre-cast shapes and is the main startirs material to produce alumina produce such as corundum bricks,corundum and mullite-corundum sagger, refined porous plug bricks, monolithic lance&composite nozzle, lining material for high-temperature industrial furnaces,etc.

CHEMICAL COMPOSITION	GRIT >0.1mm	TYPICAL VALUE	FINE POWDER ≤0.11mm	TYPICAL VALUE
AL2O3%≥	99	99.5	99	99
SiO2%≤	0.1	0.05	0.15	0.08
Fe2O3%≤	0.1	0.06	0.15	0.06
K2O+Na2O%≤	0.4	0.3	0.45	0.35
Apparent Porosity%≤	8	6
Bulk density (g/cm³)%≥	3.60	3.62
True density (g/cm³)%≥	3.92	3.92	3.92	3.93

White fused corundum for refractory