Valorization of sugarcane bagasse ash: producing glass-ceramic materials.
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 °C.
Universidade Estadual Paulista - UNESP, Presidente Prudente 19060-080, SP, Brazil. Electronic address: rainho@fct.unesp.br.
S R
SR
Teixeira
Universidade Estadual Paulista - UNESP, Presidente Prudente 19060-080, SP, Brazil.
R S
RS
Magalhães
Universidade Estadual Paulista - UNESP, Presidente Prudente 19060-080, SP, Brazil.
A
A
Arenales
Universidade Estadual Paulista - UNESP, Presidente Prudente 19060-080, SP, Brazil.
A E
AE
Souza
Eduardo Torroja Institute for Construction Sciences - CSIC, Madrid, Spain.
M
M
Romero
Eduardo Torroja Institute for Construction Sciences - CSIC, Madrid, Spain.
J M
JM
Rincón
D002119:Calcium Carbonate / Q000737:chemistry; D002152:Calorimetry, Differential Scanning; D002254:Carbonates / Q000737:chemistry; D002482:Cellulose; D002516:Ceramics; D003252:Construction Materials; D003460:Crystallization; D011188:Potassium / Q000737:chemistry; D059027:Recycling / Q000379:methods; D031786:Saccharum; D013818:Thermogravimetry; D014866:Waste Products; D014961:X-Ray Diffraction
D002254:Carbonates; D014866:Waste Products; C023506:Glass ceramics; D002482:Cellulose; C027433:bagasse; C037593:potassium carbonate; D002119:Calcium Carbonate; D011188:Potassium
Ash; Glass-ceramic; Limestone; Sugarcane; Wollastonite