Synthesis of Y-type zeolites with high degree of Na+ cation exchange for La3+

Effect of parameters of the ion exchange of Na+ cations for La3+ in Y zeolites with SiO2/Al2O3 molar ratios of 5.1 and 6.0 on the degree of exchange and physicochemical properties of the resulting LaNaY samples was studied. The conditions in which deeply substituted La-forms of a Y zeolite with high degree of crystallinity can be obtained were determined.