Production of alumina

Details Production of alumina Production of alumina

1994-06-29

1996-08-20

Bos, Steven

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423130, C01F 700, C22B 2100

Patent

active

055476473

ABSTRACT:
Bauxite that is to be used in the Bayer process for the recovery of alumina is washed with aqueous wash liquor having a caustic content of at least 50 g/l and which comprises aqueous caustic from the alumina recovery circuit of the Bayer process and, after removing organic material from the wash liquor, the wash liquor is included in the digestion stage, the separation stage or the alumina recovery circuit of the Bayer process.

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