Calcined Bauxite for Refractory Materials

Calcined Bauxite also known as bauxite or bauxite, the main component is alumina, the Department of impurities containing hydrated alumina, is a kind of soil minerals. White or gray, brown or light red due to iron. Density 3.45g / cm3, hardness 1 ~ 3, opaque, crisp. Extremely difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used for aluminum, the system refractories. Our