SYNTHESIS OF AEI AND CU-AEI ZEOLITES Russian patent published in 2021 - IPC C01B39/02 C01B39/48 B01J29/72 B01J29/10 B01J29/76 B01J35/04 B01J35/10 B01J37/04 B01J37/10 B01D53/86 B01D53/94 F01N3/20 

FIELD: chemistry.

SUBSTANCE: invention relates to synthesis of hydrogen form (H-form) of zeolites to use as catalysts. The method includes the stages: preparation of a mixture containing at least one source of silicon oxide and at least one structure-directing agent (SDA) in form of a hydroxide, wherein this mixture is substantially free of alkaline metals; heating of said mixture under autogenous pressure with stirring or mixing for a sufficient amount of time for crystallization of hydrogen zeolite crystals with an AEI backbone.

EFFECT: synthesized zeolite is free from sodium ions and demonstrates high selectivity and hydrothermal longevity after aging.

17 cl, 1 tbl, 6 ex, 10 dwg