Process for recovery of alumina-cryolite waste in aluminum produ

Details Process for recovery of alumina-cryolite waste in aluminum produ Process for recovery of alumina-cryolite waste in aluminum produ

1976-07-16

1977-10-11

Stern, Edward

Chemistry: electrical and wave energy

Processes and products

423111, 23313FB, 252518, 423465, 423625, C25C 306

Patent

active

040533751

ABSTRACT:
Alumina-cryolite waste from aluminum pot lines is subjected to oxidation in a fluidized bed reactor to remove carbon and organic contamination. Agglomeration of the alumina-cryolite product occurs in the fluidized bed and a pellet product suitable for return to the aluminum pot lines is produced.

REFERENCES:
patent: 2451492 (1948-10-01), Johnson
patent: 2789034 (1957-04-01), Swaine et al.
patent: 3053648 (1962-09-01), Stephens, Jr. et al.
patent: 3392092 (1968-07-01), Diller

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