Solubility of Silicate from Sugar Cane Bagasse Ash in Alkaline Solution

Abstract:

Sugar cane bagasse ash (SCBA) is a byproduct rich in silica, which it is present as of both crystalline and amorphous phases. This paper aims to evaluate the effect of grain size of residual SCBA particles on the solubility of silicate species in alkaline solutions that still needs examination. The influence of the amorphous character of the material was also investigated. Physical characterization was performed by the assessment of density and specific area of powder samples. Chemical and mineralogical characterizations were performed using different techniques including x-ray fluorescence, x-ray diffraction, infrared spectroscopy and scanning electron microscopy. The results indicate that the grinding process reduces the specific area of the particles of ash in a non linear fashion. The controlled burning of sugar cane bagasse increased the amorphous character of the ash. Nonetheless both factors affected the solubility of silicates, the degree of crystalinity appears to be the most important factor.

• Periodical: Key Engineering Materials (Volume 517)
• Pages: 477-483
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.517.477
• Online since: June 2012
• Authors: Primo Fernandes Filho, Sandro Marden Torres, Romildo Henriques dos Anjos, Andressa de Araújo Vieira Porto, Normando Perazzo Barbosa
• Keywords: Silicate, Solubility, Sugar Cane Bagasse Ash

References

[1] BAC, H.B., et al., Effective utilization of incinerated municipal solid waste incineration ash: zeolitic material synthesis and silica extraction, (2010).

DOI: 10.1177/0734242x09360056

[2] CORDEIRO, G.C., et al., Caracterização de cinza do bagaço de cana-de-açúcar para emprego como pozolana em materiais cimentícios, (2009).

DOI: 10.1590/s0100-40422009000100016

[3] ALEXANDER, G.B., et al., The solubility of amorphous silica in water, (1954).

[4] CORDEIRO, G.C., et al., Ultrafine sugar cane bagasse ash: high potential Pozolana material for tropical countries, (2010).

[5] MARTIN, C.C., et al., Análise via espectroscopia no infravermelho da sílica proveniente da pirólise do bagaço de cana-de-açúcar, (2007).

[6] PAULA, M., et al., Potencial da cinza do bagaço da cana-de-açúcar como material de substituição parcial de cimento Portland, (2008).

DOI: 10.1590/s1415-43662009000300019

[7] TEIXEIRA, R., Utilização de resíduos sucro-alcooleiros na fabricação de fibrocimento pelo processo de extrusão, (2010).

DOI: 10.11606/d.88.2010.tde-18112010-112218

[8] TOLMASQUIM, M.T., et al., Matriz energética brasileira: uma prospectiva, (2009).

[9] ÚNICA., 2010, União da Indústria da Cana-de-Açúcar.

[10] VILMAR, M.B., Máquinas e equipamentos para cerâmica 1a edição, (1996).

[11] WORATHANAKUL, P., et al., Characterization for post-treatment effect of bagasse ash for silica extraction, (2009).