Porcelain tiles produced by the dry route

In Brazil, 70% of the ceramic tile outpu is at present produced by the dry route. Increasing global environmental concerns and the recognition of the central role played by water have pointed towards encouraging dry processes. In this context, the objective of the present work was to study the feasibility of producing high quality porcelain tiles by the dry route. A brief comparison of the dry and wet rputes for producing traditional ceramic tiles shows that there are two major diferences: the particle sizes obtained by the wet route are usually considerably finer and, the different minerals usually mix better with the wet route. The present work studied the relative importande of these differences and looked for rwa materials and operational conditions that would result in better performance and glazed porcelain tiles of good quality

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