Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1993-01-07
1994-08-02
Straub, Gary P.
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
423133, C01F 702
Patent
active
053343662
ABSTRACT:
A new transition alumina is made by heating substantially pure diaspore in a vacuum to an elevated temperature of about 300-1000.degree. C. The new transition alumina has increased surface area compared with alpha-alumina formed by heating diaspore in air.
REFERENCES:
patent: 4012337 (1977-03-01), Mitchell
patent: 4169883 (1979-10-01), Murrell et al.
patent: 5002910 (1991-03-01), Robyn
patent: 5128081 (1992-07-01), Siegel et al.
Wefers et al., Alcoa Technical Paper No. 19, "Oxides and Hydroxides of Aluminum", 1972 pp. 40-51.
Minnick Randall B.
Perrotta Anthony J.
Aluminum Company of America
Kalinchak Stephen G.
Klepac Glenn E.
Straub Gary P.
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