METHOD FOR PRODUCING NANOFIBERS OF OXIDE-HYDROXIDE ALUMINIUM PHASES Russian patent published in 2008 - IPC C01F7/42 

FIELD: chemistry.

SUBSTANCE: invention relates to producing the fibers of the oxide-hydroxide phases with aluminum metahydroxide structure and can be used in producing the adsorbents for purification the drinking water, industrial and waste waters. Production of the nanofibers of the oxide-hydroxide aluminum phases is performed by hydrolysis of the powder obtained in electric exposure of the aluminium wire with diameter 0.3<d≤0.4 mm in the nitrogen atmosphere under pressure P<3 atmospheres and energy 19.8 J/mm³<E≤66 J/mm³, applied to the wire. At that, the following powder hydrolysis is performed at temperature not more than 70°C. The obtained nanofibers of the oxide-hydroxide aluminium phases have the length 0.1-0.2 mcm, diameter 0.001-0.013 mcm and the specific surface up to 500 m²/g.

EFFECT: allows to increase production output together with decrease of energy consumption.

5 cl, 2 dwg, 3 ex