METHOD OF PRODUCING POROUS CATALYTICALLY ACTIVE MATERIAL Russian patent published in 2020 - IPC B01J37/02 B33Y10/00 B33Y40/10 B33Y40/20 B01J35/00 

FIELD: technological processes.

SUBSTANCE: invention relates to preparation of a wide range of catalytically active porous materials and can be widely used in production of catalysts, carriers, sorbents, etc. Described is a method of producing a porous catalytically active material, characterized by obtaining 3D printed material model during interaction of a precursor with liquids in an accurate coordinate grid according to the algorithm: a) depositing layer of powdered precursor in horizontal plane; b) leveling the precursor layer and removing excess precursors in the printed plane; c) inkjet application of jet printer by projection of current printing plane in specified positions of plane projection of solution, leading to interaction of precursor particles in wetted positions; d) changing height relative to printing unit of printed layer of precursor by thickness of next layer of 0.1–0.4 mm; e) repetition of items a)–d) up to printing the extreme upper plane of the projection of the obtained material on height; f) completion of 3D printing procedure and obtaining a granulated printed sample of the precursor of the porous catalytically active material, with accuracy of printing the obtained material to 10 mcm and limited by the printing region along one of the main axes; g) subsequent aging of material and fixation of geometric shapes; h) separating the obtained printed material from the dry residue of the precursor powder and heat treatment of the obtained granule of the material, i) further, if necessary, catalytic activity of the material can be supplemented by impregnating the active component from the soluble form of the precursor with subsequent additional thermal or chemical treatment.

EFFECT: technical result is obtaining novel catalytic porous materials of known chemical composition and enables to solve many known industrial problems associated with diffusion restrictions and heat transfer owing to optimum selection of geometry of granules well matched with reactor volume, as well as reduce some negative effects of backfilling with traditional porous materials (due to porosity between granules) on flowing processes.

5 cl, 12 dwg, 5 ex