Recycling of spent potliner

Details Recycling of spent potliner Recycling of spent potliner

1987-11-23

1988-11-15

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204294, 313327, 373 89, C25C 306

Patent

active

047847336

ABSTRACT:
A method is disclosed for recycling spent potliner carbon from an aluminum reduction cell. The spent potliner is treated so as to avoid the cracking problem normally seen when the potliner is used in substantial amounts in Soderberg anodes.

REFERENCES:
patent: 167986 (1875-07-01), Burgess
patent: 2645583 (1953-07-01), Stanko
patent: 2653878 (1953-09-01), Sejersted et al.
patent: 2732283 (1956-01-01), Clukey
patent: 3635408 (1972-01-01), Williams
patent: 3932244 (1973-12-01), Mikkelsen
Belitskus, "Effects of Butt Content, Green Scrap, and Used Potlining Additions on Bench Scale Prebaked Anode Properties", Light Metals, 1980, AIME, N.Y., pp. 431-442.
Cutshall, Euel R. and Daley, Luther O., "Spent Potlining Carbon in Soderberg Anodes," paper presented at 1986 AIME Convention, Mar. 2-6, 1986, New Orleans, La.
Krzemien, Eugeniusz, Sucharek, Zbegniew and Orzechowski, Stanislaw, "Possibilities for the Utilization of Spent Cathode Blocks," Rudy Metale Niezalaz, 18(1), pp. 541-544, 1973.

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