| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to technologies of producing nano-size powders. Method of obtaining nano-size powders of ?-AlO, 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 10-10sec, 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 |
