Method for removing harmful organic compounds from aluminate liq

Details Method for removing harmful organic compounds from aluminate liq Method for removing harmful organic compounds from aluminate liq

1976-04-14

1977-09-06

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423121, 423119, 423127, 423600, C01F 700, C01F 746

Patent

active

040468550

ABSTRACT:
A method is provided for removing harmful organic compounds from the aluminate liquor obtained in the production of alumina according to the Bayer process. A magnesium obtained is added to the aluminate liquor to form a hydroxide mixture containing magnesium hydroxide and aluminum hydroxide which precipitates from the aluminate liquor. The precipitated mixture is maintained in the aluminate liquor, while being stirred, until at least a part of the organic compounds have been eliminated from the aluminate liquor. The hydroxide mixture containing the organic compounds then is separated from the aluminate liquor.

REFERENCES:
patent: 201028 (1978-03-01), Lowig et al.
patent: 663167 (1900-04-01), Hall
patent: 2981600 (1961-04-01), Porter
patent: 3649185 (1972-03-01), Sato et al.
patent: 3832442 (1974-08-01), Emerson

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