PROPERTIES OF PHILLIPSITE DERIVED FROM FLY ASH

Abstract

The physico-chemical properties of the phillipsite derived from fly ash were investigated to evaluate the utility of the product in the various fields of industry and agriculture. CEC of the product was little affected by the suspension pH, and varied with the exchange cations in the following sequence: NH⁺₄>K⁺>Ca²⁺. A rapid ion exchange reaction took place on the surface of the product. The synthesized phillipsite was stable below 250°C or above pH 3. The hypothetical chemical formula of the synthesized phillipsite would be suggested as follows: K_0.14 Na_0.86 (AlSi_1.84 O_5.68)·nH₂O. The proportion of the synthesized phillipsite in the product was estimated to be about 33.6%. It was considered that the product can be used for treating the poultry wastewater.