
In Brazil, the second largest tile producer of the world, at present, 70% of the tiles are produced by the dry route. One of the main reasons that lead to this development is the fact that the dry route uses approximately 30% less thermal energy them the traditional wet route. The increasing world concern with the environment and the recognition of the central role played by the water also has pointed towards privileging dry processes. In this context the objective of the present work is to study the feasibility of producing high quality porcelain tiles by the dry route. A brief comparison of the dry and wet route, in standard conditions industrially used today to produce tiles that are not porcelain tiles, shows that there are two major differences: the particle sizes obtained by the wet route are usually considerably finer and the capability of mixing the different minerals, the intimacy of the mixture, is also usually better in the wet route. The present work studied the relative importance of these differences and looked for raw materials and operational conditions that would result in better performance and glazed porcelain tiles of good quality.<br><br>En Brasil, en este momento segundo productor mundial, el 70% de los pavimentos cerámicos se obtiene por vía seca. Una de las razones fundamentales se debe a que esta vía supone un consumo energético inferior, en un 30%, a la via húmeda tradicional. La creciente preocupación mundial sobre los problemas medioambientales y el reconocimiento del papel central que juega el agua en este proceso han favorecido el desarrollo de la vía seca. En este contexto, el objetivo del presente trabajo es estudiar la viabilidad de la producción de pavimentos porcelánicos de alta calidad por vía seca. Una breve comparación entre ambas vías, en las condiciones standard de producción vigentes para producciones que no son de porcelánico, indican que existen dos diferencias substanciales; el tamaño de partícula, utilizado en la vía húmeda es considerablemente mas fino, y la capacidad de mezclado entre los diferentes minerales que integran la composición es normalmente tambien mejor en la vía húmeda. El trabajos analiza la importancia relativa de ambos factores y estudia las materias primas y condiciones de proceso que podrían conducir a la obtención de pavimentos esmaltados de buena calidad.
granulometry and fusibility, granulometría, fusibilidad, Clay industries. Ceramics. Glass, porcelain tiles, revestimientos porcelánicos, vía seca, vía húmeda, TP785-869, dry route
granulometry and fusibility, granulometría, fusibilidad, Clay industries. Ceramics. Glass, porcelain tiles, revestimientos porcelánicos, vía seca, vía húmeda, TP785-869, dry route
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