METHOD OF PRODUCING NICKEL-IRON CATALYTIC MATERIALS SUPPORTED ON AlO Russian patent published in 2025 - IPC B01J37/02 B01J23/755 B01J23/745 B01J21/04 B01J21/06 B01J37/08 B01J35/61 B05D5/00 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing nickel-iron catalytic materials and can be used in industrial production of supported nickel-iron catalysts for chemical processes for processing hydrocarbons, including lignocellulose biomass. Method for producing nickel-iron catalytic materials supported on Al₂O₃, comprising preparing a film-forming solution, holding the freshly prepared film-forming solution at room temperature, applying to a support, drying, wherein fresh film-forming solution is held for 1 hour before stabilization, before application of stable film-forming solution surface of carrier Al₂O₃ is prepared by calcination at 300 °C for 30 minutes, after that, a weighed portion of calcined Al₂O₃ is immersed in a stable film-forming solution for 30 minutes with constant stirring, after impregnation applied on carrier Al₂O₃ oxide system NiO-Fe₂O₃-SiO₂ is subjected to heat treatment at 400 °C with heating rate of 5 deg/min for 40 minutes with following ratio of components in film-forming solution, wt. %: distilled water – 0.2, nitric acid – 0.06, nickel nitrate heptahydrate – 0.2, iron (III) nitrate nonahydrate – 0.2, tetraethoxysilane – 0.1, butanol – balance. Catalytic materials for chemical processes of processing lignocellulose biomass, obtained using said method, are characterized by average particle size of 561 nm, specific surface area of 815 m²/g, following ratio of components, wt. %: nickel oxide – not less than 5, iron (III) oxide – not less than 5, silicon dioxide – not less than 5, aluminium oxide – balance.

EFFECT: low temperature of heat treatment during production of catalytic material, which enables to avoid sintering and enlargement of particle size during heat treatment, obtaining a dispersed catalytic material based on nickel and iron oxides using aluminium oxide as a support by distributing active metals on the surface while drying 400 °C without activation by ultraviolet radiation.

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