Processing aluminum skim

Details Processing aluminum skim Processing aluminum skim

1976-02-09

1977-08-09

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 24, C22B 704

Patent

active

040408205

ABSTRACT:
The invention relates to an efficient, salt-free method of recovering metallic aluminum from furnace skim wherein the skim is tumbled for a short period in a rotary furnace at a temperature between 1200.degree. and 1500.degree. F (649.degree.-816.degree. C) to separate the molten aluminum from the oxide portion of the skim. Preferably, after molten aluminum is drained from the rotary furnace, the spent skim is rapidly cooled by adding a relatively cool pebbly or granular material to facilitate the discharge and disposal thereof.

REFERENCES:
patent: 2754199 (1956-07-01), Stroup
patent: 3043678 (1962-07-01), Lowry
patent: 3155494 (1964-11-01), Heins
patent: 3393975 (1968-07-01), Mitchell
patent: 3660076 (1972-05-01), Williams
patent: 3770424 (1973-11-01), Floyd

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