Supermicroporous metal oxides

Details Supermicroporous metal oxides Supermicroporous metal oxides

2007-11-20

2007-11-20

Vanoy, Timothy C. (Department: 1754)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S608000, C423S594170, C423S607000, C423S594190, C423S605000, C423S632000, C423S604000, C423S622000, C423S606000, C423S263000, C423S625000, C423S335000

Reexamination Certificate

active

11033102

ABSTRACT:
A new class of supermicroporous mixed oxides, with pore sizes in the 10-20 Å range has been prepared utilizing basic metal acetates. The reactions are carried out in non-aqueous solvent media to which an excess of amine is added. Hydrolysis of the reagents is effected by addition of a water-propanol mixture and refluxing. The amine and solvent are removed by thorough washing and/or calcining at temperatures as low as 200° C. Mixtures of transition metal oxides with either ZrO2, TiO2, La2O3, SiO2, Al2O3or mixtures thereof were prepared. The surface area curves of the pure oxides are Type I with surface areas of 400-600 m2/g and up to 1100 m2/g for the mixed oxides.

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