METHOD FOR PRODUCING ZEOLITE LAYER ON A SUBSTRATE Russian patent published in 2008 - IPC C01B39/00 B01D71/02 

FIELD: inorganic chemistry, possible use for producing materials for filtration and membrane division of liquid and gaseous substances which contain zeolite layer on a substrate.

SUBSTANCE: method for producing zeolite layers on substrates includes selection or manufacture of porous substrate, precipitation of dispersion with zeolite crystals on the porous substrate, which crystals may be used as centers of crystallization of zeolite layer, reaction mixture is prepared for synthesis of zeolite in the layer, movement of substrate to position of contact with reaction mixture and hydro-thermal crystallization with creation of zeolite layer on a substrate, according to which as the substrate, the structure is used which contains gradient-porous layer of oxide ceramics on macro-porous substrate, produced by application of dry metal oxide powder onto macro-porous substrate, transformation of oxide layer to gel, transformation of gel to sol, and following plating of particles in surface-adjacent layer with an additional ceramic oxide layer.

EFFECT: ensured production of high quality membranes, which contain a zeolite layer without usage of organic structure-guiding agents.

5 cl, 3 tbl, 1 dwg