Alumina reduction cell

Details Alumina reduction cell Alumina reduction cell

1983-09-28

1984-03-13

Demers, Arthur P.

Chemistry: electrical and wave energy

Processes and products

204 64R, 204 64T, 204 65, 204 68, 204 70, 204243R, 204243M, C25C 306

Patent

active

044365985

ABSTRACT:
An improved alumina reduction cell is described in which the carbonaceous cathode includes refractory hard metal tiles projecting upwardly from the cell surface thereof, forming the true cathode surface, and inert refractory anode stops protecting the tiles from accidental contact by the anode. These anode stops protect the refractory hard metal shapes from breakage, increasing the useful life of the cell.

REFERENCES:
patent: 2774804 (1956-12-01), Dow et al.
patent: 3020220 (1962-02-01), Helling et al.
patent: 3434957 (1969-03-01), Johnson
patent: 3434958 (1969-03-01), Johnson
patent: 3438876 (1969-04-01), Marshall
patent: 3787300 (1974-01-01), Johnson
patent: 4181583 (1980-01-01), Steiger et al.
patent: 4247381 (1981-01-01), Schirnig et al.
patent: 4265717 (1981-05-01), Wiltzius

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