METHOD FOR PRODUCING ALUMINUM OXIDE Russian patent published in 2022 - IPC C01F7/02 

FIELD: chemical and technological processes.

SUBSTANCE: invention relates to chemical and technological processes, in particular to chemical methods for producing aluminum oxide from aluminum nitrate with highly ordered structure. The method for producing aluminum oxide includes pre-mixing of an aqueous solution of aluminum nitrate with a component increasing the homogeneity of the solution structure, and following heat-treating. As a component increasing the homogeneity of the solution structure, polyethylene glycol ether of isooctyl phenol (hereinafter – OP-10) is used, wherein 37.5 wt. % of an aqueous solution of aluminum nitrate is mixed with 39-49 wt. % of OP-10. The produced solution is hydrolyzed with ammonia vapor in a reactor with a vessel with 10 wt. % of ammonia solution. The produced product is washed in 96 wt. % of ethanol, and then dried at 80-90°C, and ignited at 440-460°C.

EFFECT: chemical activity of aluminum oxide is increased by increasing the homogeneity of mesopore size.

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