The influence of separately and combined bentonite and kaolinite as binders for pelletization of NaA zeolite from coal fly ash

Pelletization of zeolitic materials is required to facilitate their practical industrial and commercial applications. Zeolite-NaA was synthesized from fly ash by the fusion method shaped into spherical granules. Bentonite, kaolinite, a combination bentonite with kaolinite were tested as binders different contents 5 10 wt%. The pellet formation optimized. physicochemical properties binders, zeolite powder, granular characterized X-ray fluorescence spectroscopy (XRF), diffraction (XRD), Fourier transform infrared (FTIR), nitrogen adsorption/desorption isotherm, scanning electron microscopy (SEM) among other techniques. Deformation breakage behavior granulates compression also studied. best performance obtained 10% satisfactory mechanical strength water resistance. XRD SEM results revealed NaA typical cubic shape high crystallinity formed on surface bentonite. This result presents potential use coal obtain pelletized following principles circular economy sustainable development goals (SDGs), particularly SDG 12.