FIELD: sorbents.
SUBSTANCE: invention provides material containing alumina particles having diameter 8-13 nm, length 150-200 nm, and specific surface 350-600 m2/g, prepared via hydrolysis of ultrafine alumina powder, which particles are characterized by that oxides and hydroxides of transition metals, selected from iron, manganese, titanium, zirconium, and mixture thereof, are attached to their surfaces. A method is described wherein nano-sized nonspherical alumina is prepared via hydrolysis of ultrafine alumina powder, after which solution of above-defined salt is added to resulting slurry of alumina particles, then mixture is supplemented by alkali solution, calcined, and fractioned.
EFFECT: increased sorption capacity and strength at lower hydrodynamic resistance.
10 cl, 5 ex
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