|
In this paper the conversion technology of F-class fly ashes into Na-P1 zeolite material has been presented. In the proposed solution four process stages can be distinguished: a stage of the reactor loading, a reaction stage, a stage for separation of reaction products, and a stage for final processing of the obtained material. The prototype line was the basis for obtaining a zeolite material, in which Na-P1 type was a dominant phase. For synthesis processes the following conditions were applied: 20 kg fly ash, 12 kg NaOH, 90 dm3water, a reaction temperature of 80 °C and reaction duration of 36 hours. The content of pure zeolite phase in the reaction product was 81% with a BET surface area increasing from 15 to 75 m2 g-1. A high conversion rate of the fly ash into the Na-P1 zeolite indicates the necessity of industrial research into the construction of a processing line capable of manufacturing zeolite material in industrial conditions.
|
