Artigo
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
9256541983393135
Autor
Teixeira, Silvio Rainho [UNESP]
Magalhaes, Renata da Silva [UNESP]
Arenales, Amanda [UNESP]
Souza, Agda Eunice de [UNESP]
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. PROPE/UNESP/SANTANDER Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) FUNDU-NESP Univ Estadual Paulista, UNESP, BR-19060080 Presidente Prudente, SP, Brazil CSIC, Eduardo Torroja Inst Construct Sci, Madrid, Spain Univ Estadual Paulista, UNESP, BR-19060080 Presidente Prudente, SP, Brazil FAPESP: 08/04368-4