Abstract

FOLETTO, E.L. et al. Conversion of rice husk ash into zeolitic materials. Lat. Am. appl. res. [online]. 2009, vol.39, n.1, pp.75-78. ISSN 0327-0793.

The objective of this work was to synthesize zeolitic products using rice husk ash (RHA) as silicon source. For the synthesis, two mineralizing agents: NaOH and KOH were tested. Chemical composition of the synthesized samples as well as their cation exchange capacity (CEC) were determined. The samples were also characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Formation of structure LTA (zeolite A) with NaOH as mineralizing agent was verified. The zeolitic materials presented high capacity of cation exchange, in the range of 5-6 meq/g.

Keywords : Rice Husk Ash; Zeolite; Synthesis.

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