Process for the recovery of aluminum from alunite

Details Process for the recovery of aluminum from alunite Process for the recovery of aluminum from alunite

1976-07-12

1978-02-21

Sebastian, Leland A.

Chemistry: electrical and wave energy

Processes and products

204 98, 204104, 423127, C01D 106

Patent

active

040750680

ABSTRACT:
An improvement in the process for the recovery of aluminum from alunite in which potassium hydroxide is recovered from byproduct potassium sulfate by electrodialysis, further improvement being the use of sodium hydroxide from the bleed stream from the Bayer leach for use in the electrodialysis process for recovering potassium hydroxide from potassium sulfate.

REFERENCES:
patent: 3554895 (1971-01-01), McRae et al.
patent: 3890425 (1975-06-01), Stevens et al.
patent: 3890426 (1975-06-01), Stevens et al.
patent: 3907654 (1975-09-01), Radd et al.

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