Treatment of aluminum reduction cell linings combined with use i

Details Treatment of aluminum reduction cell linings combined with use i Treatment of aluminum reduction cell linings combined with use i

1989-03-17

1990-05-22

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

423111, 75687, 75672, C22B 704

Patent

active

049274597

ABSTRACT:
Spent potlinings from aluminum reduction cells are fed to an aluminum reclamation furnace as a partial replacement for or supplement to the molten salt flux used in the reclamation process. This rids the spent potlinings of materials which would leach into soil or groundwater if the potlinings were otherwise disposed of at dumpsites, rendering them suitable for dumping with no hazard to the environment. Benefits to the reclamation process may be had at the same by substituting the less expensive potlinings for the salt flux materials and by using the fuel potential of the potlinings to reduce the external fuel requirement.

REFERENCES:
patent: 4735784 (1988-04-01), Davis et al.
patent: 4822388 (1989-04-01), Gee

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