Process for accelerating the digestion and sedimentation steps o

Details Process for accelerating the digestion and sedimentation steps o Process for accelerating the digestion and sedimentation steps o

1979-01-24

1980-10-07

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423131, C01F 706

Patent

active

042268389

ABSTRACT:
An improved process for accelerating the digestion process in the Bayer alumina process is provided which promotes both the goethite-hematite conversion and a more perfect and quick dissolution of the diaspore. The above is achieved by carrying out the digestion in the process of 5-20% by weight calculated on the dry weight of the bauxite of a novel hydrogarnet catalyst.

REFERENCES:
patent: 3737514 (1973-06-01), King
patent: 3944648 (1976-03-01), Solymar et al.
patent: 4026989 (1977-05-01), Orban et al.
patent: 4091071 (1978-05-01), Boros et al.

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