Bilimsel Madencilik Dergisi, vol.59, no.1, pp.7-14, 2020 (Scopus)
In this study, Faujasite (Na-LSX) (3.5(Ca0.3)3.5(Na0.6)3.5(Mg0.1)Al7
Si17O48•32(H2
O)) type zeolites
and Ca-Filipsite (CaK0.6Na0.4Si5.2Al2.8O16•6(H2
O)) type zeolites were produced from Sugözü
Thermal Power Plant and Çatalağzı Thermal Power Plant fly ashes by alkali fusion method
followed by water leaching, respectively. In these methods, fly ashes and sodium hydroxide
(NaOH) were mixed in certain proportions and sintered at 600 °C in ash furnace. Then, zeolites
were obtained from the ground materials after water leaching and solid/liquid separation,
respectively. Cation Exchange Capacity (CEC), X-Ray Diffraction (XRD), Scanning Electron
Microscopy (SEM), Fourier-Transform Infrared Spectroscopy (FTIR), X-Ray Fluorescence (XRF)
and Atomic Absorption Spectrometer (AAS) analyses were used to characterize the synthesized
zeolites. The zeolites synthesized with Sugözü fly ashes in a ratio of 1:2 had 136.93 meq/100 g
CEC, whereas the CEC of synthesized zeolite from Çatalağzı fly ashes was found to be 247.88
meq/100 g. As a result, zeolites, which can be used as wastewater treatment agent, energy
storage material, catalyst and separator, were synthesized by using 2 different Class F fly ash.