Method for producing Y-type zeolite, and catalyst and adsorbent comprising the zeolite

摘要

Y-Zeolites having a SiO2/Al2O3 skeletal ratio greater than 100 are produced by treating a partially dealuminised Y-Zeolite having a SiO2/Al2O3 ratio of 8:50, prepared with steam at 500 - 1000 degrees C.