Utilização de resíduo industrial como carga mineral para a produção de tinta
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Data
2015-10-15
Autores
Porto, Anderson Sales
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Universidade Federal do Espírito Santo
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The use of waste materials in the production of new products, in addition to reducing the impact of production processes on the environment, it also helps to reduce the use of natural resources and contributes to energy savings. Lime mud is a solid waste generated from the pulp production process; it is usually send to the industrial landfill as waste, however, lime mud is composed primarily of calcium carbonate (CaCO3) and has favorable characteristics for further study in order to increase their use. Most studies in the literature show lime mud use for soil acidity correction. From this perspective, the purpose of this work was to study the possibility of using lime mud as filler in waterborne architectural paints production and as, a result of such use, demonstrate energy savings opportunity. In this work, in addition to the energy consumption survey of the mineral filler production process used to produce waterborne architectural paint, six lime mud samples from the production process of a pulp industry were characterized and the results were compared with a standard mineral filler sample used commercially for the paint production, it was also characterized. The samples were characterized by x-ray diffraction (XRD) analysis, x-ray fluorescence spectrometry (XRF), specific surface area, particle size by laser diffraction, pH, brightness, color, CaCO3 content and they were subjected to oil absorption, hiding power and contrast ratio analysis. Paint samples were prepared with standard filler and with lime mud. The paint samples were subjected to pH, hiding power, contrast ratio, brightness and color analysis. An examination of the results, led to the conclusion that the industrial waste "lime mud" can be used as a mineral filler to produce waterborne architectural paints; besides providing an economic advantage in the paint formulation, its use contributes to energy savings, environmental impact reduction and use of natural resources
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PORTO, Anderson Sales. Utilização de resíduo industrial como carga mineral para a produção de tinta. 2015. 78 f. Dissertação (Mestrado em Energia) - Programa de Pós-Graduação em Energia, Universidade Federal do Espírito Santo, São Mateus, 2015.