Alchemists commonly used in refractory materials

To refractories refractory divided into:

Ordinary refractories, refractoriness of 1580 ~ 1770 ℃; advanced refractories, refractoriness of 1770 ~ 2000 ℃; super refractories, refractoriness above 2000 ℃.

According to the nature of refractory material is divided into:

Acid refractory materials, such as silica brick, can resist acid residue, and have strong resistance to acidic slag SiO2 and P2O5. Alkaline refractory materials, such as magnesia brick, have strong resistance to CaO and MgO slag. Neutral Refractory materials, such as high alumina bricks or clay bricks.

According to the chemical composition and mineral composition:

Aluminum silicate, silica, magnesia, ferrochromium, carbonaceous and other refractory materials.