Method for wrought and cast aluminum separation

Details Method for wrought and cast aluminum separation Method for wrought and cast aluminum separation

1980-04-14

1982-05-18

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

Selective or differential comminution of mixed or bonded solids

241 23, 241 24, B02C 1912

Patent

active

043300901

ABSTRACT:
A method of separating wrought and cast aluminum from a scrap mixture containing the two is disclosed. In this method, the scrap mixture is first heated to a temperature above the solidus temperature of the cast aluminum scrap. At this temperature, the scrap mixture is crushed thereby causing the cast aluminum to fragmentize into small pieces while merely causing flattening of the wrought aluminum. By using an appropriately sized screen, the cast aluminum fragments can then be separated from the wrought aluminum.

REFERENCES:
patent: 3666442 (1972-05-01), Layre et al.
patent: 3894693 (1975-07-01), Takashima
patent: 4251034 (1981-02-01), Corr et al.
Singer and Cottrell Journal of the Institute of Metals, vol. 73, 1947 pp. 33-54.

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