Porous lightweight ceramic tiles and its manufacturing method

An innovative technology of manufacturing of porous lightweight ceramic tile was prepared by recycling of polishing porcelain stoneware residues and ceramics tile raw materials. Polishing porcelain stoneware residues was used as raw material in the tile manufacturing process. The polishing porcelain stoneware residues, in the ratios more than 50wt%, were mixed with raw materials such as clay, quartz, and feldspar. The mixtures were ball milled and spray drayed before they are dust pressed into green tile ceramic bodies. The pressed green bodies were then sintered at temperature range between 1030-1200 DEG C for an appropriated sintering time, and porous lightweight ceramic tiles were produced. Therefore, both purposes of zero-waste and resource-utilization are also attained.