FIELD: chemistry.
SUBSTANCE: invention relates to technologies of producing nano-size powders. Method of obtaining nano-size powders of γ-Al2O3, which includes supply of initial material into reactor of gas-discharge plasma by transporting gas, which is plasma-forming gas, burning of initial material at temperature 3000-4000K for 10-5-10-3 sec, cooling of obtained powder of aluminium oxide by cooling inert and its condensation in water-cooled reception chamber, in which initial material consists of mixture of aluminium hydroxide and oil coke powders. Aluminium hydroxide is obtained by carbonisation of aluminate solution at temperature 20-60°C and has bayerite structure with grain size 1000-5000 nm.
EFFECT: invention makes it possible to obtain active form of aluminium oxide with high specific surface.
7 cl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING NANO-SIZE ALUMINIUM NITRIDE POWDER | 2012 |
|
RU2494041C1 |
| CHARGE FOR PRODUCING A POLYFRACTION PROPPANT, METHOD FOR PRODUCTION AND APPLICATION THEREOF IN HYDRAULIC FRACTURING | 2020 |
|
RU2760662C1 |
| METHOD FOR PRODUCING DISPERSED MESOPOROUS POWDERS BASED ON ALUMINUM OXIDE FOR CATALYST CARRIERS | 2018 |
|
RU2665038C1 |
| METHOD OF PRODUCING METAL NANO-SIZED POWDERS | 2011 |
|
RU2489232C1 |
| METHOD FOR PRODUCING HIGHLY DISPERSED BAYERITE | 2020 |
|
RU2746660C1 |
| CATALYST OF N-ALKANE HYDROIZOMERIZATION AND METHOD OF ITS PREPARATION | 2016 |
|
RU2632911C1 |
| METHOD OF COAGULATING AGENT MAKING - ALUMINIUM HYDROXOCHLORIDE | 0 |
|
SU1809819A3 |
| METHOD OF SUPERFINE ALUMINIUM HYDROXIDE PREPARATION | 2007 |
|
RU2355638C1 |
| METHOD OF PRODUCING DENSE NANOCERAMICS BASED ON ALUMINUM OXIDE IN THE AlO-ZrO(YO) SYSTEM | 2018 |
|
RU2685604C1 |
| ALUMINUM OXIDE-BASED SUPPORT FOR CATALYSTS FOR PROCESSING HYDROCARBON MATERIAL AND METHOD OF ITS PREPARATION | 2018 |
|
RU2685263C1 |
