Valorization of sugarcane bagasse ash: Producing glass-ceramic materials

Autor(es)

Teixeira, S. R. ^[1] ; Magalhaes, R. S. ^[1] ; Arenales, A. ^[1] ; Souza, A. E. ^[1] ; Romero, M. ^[2] ; Rincon, J. M. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, BR-19060080 Presidente Prudente, SP - Brazil

^[2] CSIC, Eduardo Torroja Inst Construct Sci, Madrid - Spain

• Tipo de documento: Artigo Científico
• Fonte: Journal of Environmental Management; v. 134, p. 15-19, FEB 15 2014.
• Citações Web of Science: 20

Resumo

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. (AU)

• Processo FAPESP: 08/04368-4 - Desenvolvimento de material vitro-cerâmico através de vitrificação e cristalização controlada de cinza de bagaço de cana
• Beneficiário: Silvio Rainho Teixeira
• Modalidade de apoio: Auxílio à Pesquisa - Regular