Method for improved alumina control in aluminum electrolytic cel

Details Method for improved alumina control in aluminum electrolytic cel Method for improved alumina control in aluminum electrolytic cel

1982-01-27

1984-01-10

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

C25C 306, C25C 320

Patent

active

044252013

ABSTRACT:
A method of controlling alumina additions to aluminum reduction cells is disclosed. Changes in cell resistance with respect to time are measured and compared to historical values. Alumina is fed to the cell only under conditions which, based upon a statistically reliable sampling of resistance values, give a substantial reliability that an electrode upset will occur if an alumina feed is not performed.

REFERENCES:
patent: 3622475 (1971-11-01), Shiver et al.
patent: 3712857 (1973-01-01), Piller
patent: 3812024 (1974-05-01), Goodnow et al.

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