Abstract: High-temperature X-ray diffractometer is employed to study the dispersion capacities of KCI and NaCl in zeolite supports. The capacities are strongly affected by temperature. The higher the temperature is, the greater the capacities are. It was also found that the capacity obtained by impregnating and drying at low temperature is much smaller than that obtained by impregnating and heating at high temperature. For example, only a small amount of KCl can disperse into NaA Zeolite pores by impregnating, and this is most likely owing to the competition adsorption of water and the salt in zeolite pores.

Key words: Zeolite support, Spontaneous dispersion, Dispersion capacity, Influence of temperature on capacity