METHOD OF OXIDISING ALUMINIUM, ALUMINIUM OXIDATION CATALYST AND ALUMINIUM OXIDE-BASED NANOMATERIAL (EMBODIMENTS) Russian patent published in 2019 - IPC C01F7/42 B82B3/00 B82Y30/00 C30B29/20 B01J27/57 B01J23/18 B01J21/02 B01J21/04

Abstract RU 2692721 C2

FIELD: chemistry.

SUBSTANCE: invention can be used in production of adsorbents, carriers for catalysts, fillers of composite materials, heat-insulating materials. Method of producing nanosized aluminium oxide involves an aluminium oxidation step in the presence of a liquid phase catalyst which contains tellurium oxide and/or bismuth oxide. Oxidation of aluminium is carried out at temperature higher than 660 °C and lower than 1400 °C with simultaneous coexistence in the reactor of a gas phase containing oxygen, liquid phase (I) containing aluminium, and a liquid phase (II) containing an aluminium oxidation catalyst. Liquid phase (II) is not mixed with aluminium-containing liquid phase (I) and forms a film on its surface.

EFFECT: invention simplifies production of a large amount of nanosized aluminium oxide of the selected morphology without using highly toxic materials and chemical compounds.

19 cl, 5 dwg, 9 ex

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RU 2 692 721 C2

Authors

Predtechenskij Mikhail Rudolfovich

Khasin Aleksandr Aleksandrovich

Dates

2019-06-26—Published

2017-09-19—Filed