Brown Aluminum Oxide  not only can be used as abrasive to make cutting and grinding wheel and other coated abrasvie; but also used for refactory material. Below is the chemical composition and technical data:
 

Al2O3: 95% Min.

Fe2O3: 0.15% Max.

TiO2: 2-3%

SiO2: 1.2% Max.

Cao: 0.5% Max.

Size: F12-F220 as abrasive; 0-1mm, 1-3mm, 3-5mm, 5-8mm as refractory material

Other: Tilting Furnace + Bamac

Packing: Loose in Ton bag/25kg pp bag/25kg bag, then 40 bags in ton bag