Otro
Valorization of sugarcane bagasse ash: Producing glass-ceramic materials
Registro en:
Journal Of Environmental Management. London: Academic Press Ltd- Elsevier Science Ltd, v. 134, p. 15-19, 2014.
0301-4797
10.1016/j.jenvman.2013.12.029
WOS:000332811800003
Autor
Teixeira, Silvio Rainho
Magalhaes, Renata da Silva
Arenales, Amanda
Souza, Agda Eunice de
Romero, M.
Rincon, J. M.
Resumen
Some aluminosilicates, for example mullite and wollastonite, are very important in the ceramic and construction industries. The most significant glass-ceramic for building applications has wollastonite as the main crystal phase. In this work we report on the use of sugarcane bagasse ash (SCBA) to produce glass-ceramics with silicates as the major crystalline phases. The glasses (frits) were prepared by mixing ash, limestone (calcium and magnesium carbonates) and potassium carbonate as the fluxing agent. X-ray fluorescence was used to determine the chemical composition of the glasses and their crystallization was assessed by using thermal analysis (DTA/DSC/TGA) and X-ray diffraction. The results showed that glass-ceramic material can be produced with wollastonite as the major phase, at a temperature lower than 900 degrees C. (C) 2014 Elsevier Ltd. All rights reserved. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)