Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1986-09-24
1987-12-15
Metz, Andrew H.
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
423266, 423593, 502351, C01G 2502
Patent
active
047132337
ABSTRACT:
Inorganic metal oxides having high surface area and pore volume are prepared by spray drying. The admixture which is spray dried to yield the metal oxides is produced from reactants comprising at least one hydrolyzable metal compound, a sufficient amount of water to at least partially hydrolyze the metal compound and an organic solvent. The admixture is supplied as a plurality of droplets to a reaction zone operated under conditions of temperature and pressure below the critical temperature and pressure of the reactants but sufficient to produce a product comprising metal oxide powders and a gas comprising organic solvent vapors. The powders are separated from the gas in a known fashion and collected. Spray drying of non-aqueous systems unexpectedly produces metal oxides having properties generally intermediate conventionally produced oxides and aerogels.
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Armor John N.
Fanelli Anthony J.
Marsh Gary B.
Zambri Patrick M.
Allied Corporation
Buff Ernest D.
Fuchs Gerhard H,.
McFarlane A.
Metz Andrew H.
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