Synthesis and characterization of Na-P1 (GIS) zeolite using a kaolinitic rock

Abstract This work focuses on the hydrothermal synthesis of Na-P 1 zeolite by using a kaolinite rock coming from Romana (Sassari, Italy). The kaolin is calcined at temperature 650 °C and then mixed with calculated quantities NaOH. runs are carried out ambient pressure variable temperatures 65 100 °C. For first time compared to past, Na-P1 synthesized without use additives through protocol that reduces both times. products analysed X-ray diffraction, high infrared spectroscopy, scanning electron microscopy inductively coupled plasma optical emission spectrometry. cell parameters Rietveld method. Density specific surface area also calculated. absence amorphous phases impurities in synthetic powders verified quantitative phase analysis combined reference intensity ratio methods. results make experimental very promising for an industrial transfer.