Extraction of alumina from bauxite ores

Details Extraction of alumina from bauxite ores Extraction of alumina from bauxite ores

1975-05-14

1976-06-29

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423131, 423122, C01F 706

Patent

active

039668746

ABSTRACT:
An improved wet caustic process of the Bayer method for the extraction of alumina from bauxite containing amounts of both goethite and a monohydrated alumina wherein lime is added only after the bauxite slurry has been heated to a digestion temperature of at least 200.degree.C.

REFERENCES:
patent: 1422004 (1922-07-01), Sherwin
patent: 2701751 (1955-02-01), Porter
patent: 2701752 (1955-02-01), Porter
patent: 2926069 (1960-02-01), Perrin et al.
patent: 3714792 (1973-02-01), Murphy et al.
patent: 3737514 (1973-06-01), King

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