Estudo da substituição parcial do Feldspato pelo Filito da região de Marabá em formulações de Porcelanato

Abstract

The ceramic coating industry in Brazil is emerging both in the scope of production and consumption. The production is concentrated mainly in the southern region, southeast and northeast, mainly due to the ease of obtaining the necessary raw materials for the manufacture of porcelain. Aiming to the production in the northern region of the country, we proposed the study of partial replacement of feldspar by the white phyllite from Marabá, and thus the economically viable manufacturing of porcelain in the region. To carry out the proposed study we selected a standard formulation and it originated three other formulations which promoted the partial replacement of feldspar by phyllite in 25%, 50% and 75% proportions. Such formulations, after passing through the grinding, homogenising and shaping steps they were sintered using the firing threshold of 05min at temperatures of 1175, 1200 and 1225°C. After sintering, the samples were subjected to technological and mechanical tests to assess whether the final product was pursuant with the technical standard.