Kaolin: processing, properties and applications ...
1991-9-1 · Clay is an essential raw material in ceramic prod- ucts, comprising 25-100% of the ceramic body. Kaolin, however, is only one of a number of clays used in this industry. Kaolin makes up an average of 25% of earthenware, 60% of porcelain, 20-30% of vitreous-china sanitary ware, and 20% of electrical porcelain and wall tiles.