Low/density/low surface area silica-alumina composition

Details Low/density/low surface area silica-alumina composition Low/density/low surface area silica-alumina composition

C - Chemistry, Metallurgy

04

B

6/226, 261/38

C04B 35/18 (2006.01) B01J 21/12 (2006.01) C01B 33/26 (2006.01) C09D 1/00 (2006.01)

Patent

CA 2020534

ABSTRACT UNIVERSITY OF NEW MEXICO ALBUQUERQUE, NEW MEXICO, U.S.A. LOW DENSITY/LOW SURFACE AREA SILICA-ALUMINA COMPOSITION This invention relates generally to silica-alumina ceramic compositions and more particularly to a composition range and process which provides a silica-alumina xerogel having surface areas of up and beyond about two orders of magnitude lower than for compositions outside the range and skeletal densities substantially lower than for compositions outside the range, thereby providing a liqhtweight silica-alumina material having an essentially nonporous surface and thus, highly advantageous as a coating.

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