Process for regulating the acidity of all-Heelectrolytic cells

Details Process for regulating the acidity of all-Heelectrolytic cells Process for regulating the acidity of all-Heelectrolytic cells

1988-09-14

1989-09-19

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

204245, 204246, 204247, C25C 306, C25C 322

Patent

active

048678511

ABSTRACT:
The invention relates to a process for regulating the acidity of the electrolytic bath by recycling fluorinated effluents emitted by the Hall-Heroult electrolytic cells for the production of aluminum, in which said fluorinated effluents are collected, by the dry route, on the alumina. It comprises the following stages:

REFERENCES:
patent: 3248177 (1966-04-01), Grolee
patent: 3760565 (1973-09-01), Fish
patent: 3827955 (1974-08-01), Bahri et al.
patent: 4053375 (1977-10-01), Roberts et al.
patent: 4062696 (1977-12-01), Ducote
patent: 4176019 (1979-11-01), Dethloff

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