Patent ID: 6429172
Filing Date: 2002-08-06
Classification: B01J,C01F,C01P

Abstract:
A method for producing pseudo-boemite comprising:dissolving metal aluminum in an acidic aqueous solution to prepare an acidic aluminum aqueous solution which contains a metal component other than aluminum in a molar ratio of 0.001 to 0.02 with respect to total aluminum contained in the aqueous solution; and producing the pseudo-boehmite by mixing the acidic aluminum aqueous solution with an alkaline aluminum aqueous solution, the pseudo-boehmite having a specific surface area of 100-500 m2/g and a pore volume of 0.4-1.8 cc/g, the pseudo-boehmite containing a non-aluminum metal selected from the group consisting of Cu, Ni, Mg, Cr, Mn, Ti, V, Zn, Zr, Be, Ga, Pb, Bi, Sn, Sb, Si, Fe and lanthanoid.