Coarsening of partially calcined alumina dust

Details Coarsening of partially calcined alumina dust Coarsening of partially calcined alumina dust

1975-06-26

1977-09-27

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423121, 423629, 423630, 23313R, 23305A, 23301, C01F 706, C01F 714

Patent

active

040512223

ABSTRACT:
Alumina dust, particularly partially calcined alumina dust, is coarsened by forming an aqueous admixture or slurry comprising the alumina dust and finely divided calcium carbonate and introducing the resulting aqueous admixture or slurry into Bayer pregnant liquor and precipitating alumina trihydrate from the resulting Bayer pregnant liquor.

REFERENCES:
patent: 2283849 (1942-05-01), Coles
patent: 2707669 (1955-05-01), Houston et al.
patent: 3466142 (1969-09-01), Hambly

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