The role of zircon

The role of zircon

Can be made of glass kiln zircon brick, Sheng Gangzhuang with zircon tiles, ramming materials and castables; added to other materials can improve its performance, such as the synthesis of cordierite to add zircon sand, can broaden the cordierite Sintering range, without affecting its thermal shock stability; in the high alumina brick to add zircon sand, the manufacture of anti-peeling high alumina brick, thermal shock stability greatly improved; can also be used to extract ZrO2.

Zircon is used for refractory materials (such as zirconium refractory, such as zirconium corundum brick, zirconium refractory fiber), casting industry with sand (precision casting sand), precision enamel equipment, in addition to glass, metal (sponge Zirconium) and zirconium compounds (zirconium dioxide, zirconium oxychloride, sodium zirconate, potassium fluorozirconate, zirconium sulfate, etc.).

Zircon sand (zircon) and dolomite together react at high temperatures to produce zirconium oxide or zirconium oxide (ZrO2). Zirconium oxygen is also a high quality refractory material, although its crystal form changes with temperature. Stable zirconium oxygen also contains a small amount of magnesium, calcium, scandium or yttrium oxide, stable zirconium melting point close to 2700, it is thermal shock, in some metallurgical applications than zircon is poor reaction. Stable zirconium oxide thermal conductivity is low, in the industrial zirconium oxide, hafnium for the use of refractory is harmless.