Preparation of zeolites

摘要

Synthetic crystalline alumino-silicate zeolites are prepared by combining reactant quantities of alumina, silica, sodium hydroxide and water with zeolite-forming alumino-silicate seeds having the composition 16 Na2O: 2 to 9 Al2O3: 15 SiO2: 500 to 2000 H2O. The seed compositions may be used to produce Type A, X and Y crystalline alumino-silicate zeolites.