Patent ID: 6261533
Filing Date: 2001-07-17
Classification: B01J,B82Y,C01F,C01P,C04B

Abstract:
A process for the production of an aluminum oxide composition having a specific surface area equal to or greater than about 70 m.sup.2 /g and a narrow pore radii distribution where at least about 90 percent of the pore radii are between about 1.7 and 2.2 nm, said process comprising subjecting an aluminoxane with a basic structural element of--Al--O--Al-- or a basic oligomeric structural element of --Al--O--Al--O--Al--O--Al-- to mild hydrolysis with at least one inert gas moistened below its dew point to produce an intermediate composition and subjecting the intermediate composition to thermolysis at temperatures from about 300 to about 900.degree. C. to form said aluminum oxide composition.