What factors affect the refractoriness of kaolin

- Aug 02, 2018-

What factors affect the refractoriness of kaolin


The refractory degree is related to the chemical composition of kaolin. The refractoriness of pure kaolin is about 1700 C. When the content of mica, feldspar is more, the content of potassium, sodium and iron is high, the refractoriness is reduced, and the refractoriness of kaolin is lowest not less than 1500. The industrial department stipulates that the R2O content of refractories is less than 1.5 - 2%, and Fe2O3 is less than 3%.