Process of preparing high purity alumina bodies

Details Process of preparing high purity alumina bodies Process of preparing high purity alumina bodies

1982-02-11

1983-04-05

Carter, Herbert T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423628, 423630, C01F 702

Patent

active

043791344

ABSTRACT:
High purity alpha-alumina bodies useful as catalyst supports are made by peptizing boehmite alumina in an acidic mixture containing fluoride anions, extruding the peptized alumina into shaped bodies and drying and calcining the bodies. The alpha-alumina bodies are characterized by a narrow pore-size distribution, having 85 percent of the total pore volume comprising pores of a diameter of from 10,000 to 200,000 Angstroms and by a surface area of less than one square meter per gram.

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patent: 3894963 (1975-07-01), Gerdes et al.
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patent: 3975509 (1976-08-01), Royer et al.
patent: 4048295 (1977-09-01), Wassermann et al.
patent: 4102978 (1978-07-01), Kivusky et al.

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