Alpha alumina production in a steam-fluidized reactor

Details Alpha alumina production in a steam-fluidized reactor Alpha alumina production in a steam-fluidized reactor

1985-04-03

1986-04-29

Carter, Herbert T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423DIG16, C01F 702

Patent

active

045856451

ABSTRACT:
A process for transforming alumina hydrate into an anhydrous product comprising at least 10 wt % alpha alumina. Alumina hydrate is dehydrated, heated and transferred to a reactor where it is fluidized with steam and maintained at a temperature of about 900.degree.-1350.degree. C. Steam fluidization enhances crystal growth and results in a product having uniform quality and superior grinding characteristics.

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patent: 4374119 (1983-02-01), Schepers et al.
Lussky, Edward W., "Experience with Operation of the Alcoa Fluid Flash Calciner", Light Metals 1980, The Metallurgical Society of AIME, pp. 69-79.

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