Recovery of aluminum from aluminum-glass cloth residues

Details Recovery of aluminum from aluminum-glass cloth residues Recovery of aluminum from aluminum-glass cloth residues

1976-10-12

1977-08-30

Custer, Jr., Granville Y.

Solid material comminution or disintegration

Processes

Selective or differential comminution of mixed or bonded solids

241 24, 241 29, B02C 1912

Patent

active

040449556

ABSTRACT:
A method is described for reclaiming aluminum from aluminum-glass cloth residues in which the glass cloth fibers are coated with aluminum, the glass cloths having been used for the filtering of molten aluminum. The method comprises the steps of: breaking down the residue into small pieces, squeezing each piece of residue between hard surfaces on a pair of rotating cylindrical rolls with sufficient squeezing pressure to extrude the aluminum coating to destroy its integrity and expose the interior glass fibers along substantially the entire length of each piece and segregating the resulting glass fibers from the remaining aluminum pieces by air separation. The recovered aluminum pieces can be then reused in various industrial processes.

REFERENCES:
patent: 2509147 (1950-05-01), Hurst
patent: 2509148 (1950-05-01), Hurst
patent: 3705694 (1972-12-01), Slocum
patent: 3894693 (1975-07-01), Takashima

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