Characterization of Rice Straw Ash and Utilization in Glass Production

Yotsakit Ruangtaweep; Nattapon Srisittipokakun; Kitipun Boonin; Patarawagee Yasaka; Jakrapong Kaewkhao

doi:10.4028/www.scientific.net/AMR.748.304

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 748Characterization of Rice Straw Ash and Utilization...

Characterization of Rice Straw Ash and Utilization in Glass Production

Abstract:

The recycling of rice straw fly ash (RSA) obtained from the biomass power plants has been studied. RSA was calcined at 400, 600, 800 and 1,000 °C for 3 h and investigated their compositions and structures by X-rays fluorescence spectrometer (XRF) and X-rays diffractometer (XRD) respectively. The results show that, the major compositions of RSA are SiO₂ and CaO, MgO, K₂O and P₂O₅. The XRD patterns exhibited the peak of sylvite potassium chloride phase (KCl) up to 600 °C. Since 800 °C tridymite phase SiO₂ was obtained and the KCl phase was disappeared. The glasses from RSA (RSA-glass) were prepared by melt-quenched technique and investigated their optical and physical properties, compared with the glass prepared from high purity SiO₂(SiO₂-glass) using the same glass formula and preparation conditions. The density and refractive index of the RSA-glass were higher than SiO₂-glasses. Similar optical absorption spectra of both glasses were obtained. In addition the shoulder peak were appeared at 450 nm due to Fe³⁺ ion from contamination in RSA.

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Periodical:

Advanced Materials Research (Volume 748)

Pages:

304-308

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.748.304

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Online since:

August 2013

Authors:

Yotsakit Ruangtaweep, Nattapon Srisittipokakun, Kitipun Boonin, Patarawagee Yasaka, Jakrapong Kaewkhao

Keywords:

Glass, Optical, SiO₂, Straw Ash

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