Process for producing a highly crystalline, fine .alpha.-alumina

Details Process for producing a highly crystalline, fine .alpha.-alumina Process for producing a highly crystalline, fine .alpha.-alumina

1993-09-03

1995-07-11

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Aluminum compound containing

501128, 51293, 51308, C04B 3510

Patent

active

054321379

ABSTRACT:
A novel process for producing highly crystalline, fine .alpha.-alumina is disclosed. Aluminum hydroxide is calcined in the presence of fine silica powder. The obtained alumina is in the alpha form and has a specific surface area of least 10 m.sup.2 /g.

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Gerhartz, Ullmann's Encyclopedia, 1985 (no month), vol. A-1 pp. 561-562.

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