Production of high pore volume alumina spheres

Details Production of high pore volume alumina spheres Production of high pore volume alumina spheres

1978-02-24

1979-02-20

Carter, Herbert T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

264 15, 423630, 252463, C01F 702

Patent

active

041407733

ABSTRACT:
High macro-pore content spheres (>1000A) are produced by use of a rotating wheel, wherein dry alumina is dropped onto the wheel under a peptizing spray misted onto the wheel through an atomizing device. Compressive stresses normally encountered in procedures such as pelletizing are avoided, thereby preserving macro-pores. Size of spheres can be adjusted by altering, for example, the angle at which the wheel rotates.

REFERENCES:
patent: 2805920 (1957-09-01), Richardson
patent: 3317277 (1967-05-01), Cosgrove
patent: 3419352 (1968-12-01), Acciarri

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