Process for the treatment of aluminum-salt slags

Details Process for the treatment of aluminum-salt slags Process for the treatment of aluminum-salt slags

1979-07-02

1981-06-30

Halper, Robert

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

209 3, 209 17, 209166, 75 97A, 423111, B02C 2314

Patent

active

042758475

ABSTRACT:
A process for the treatment of an aluminum-salt slag produced in the remelting of aluminum by the addition of salt to aluminum scrap wherein the aluminum salt slag is subjected to pressure and impact rolling to a thickness of about 0.2 mm to about 1 mm and the product is milled to an X.sub.80 value of about 130 to 150 microns. The milled product is classified in a plurality of stages to recover therefrom a large-particle fraction consisting at least predominantly of aluminum particles, and a fine-particle fraction. The fine-particle fraction is subjected to flotation in at least one flotation stage to which a base is added in an amount of 0.04 to 0.4 g of the base per ton of the material subjected to flotation to bring the pH to between 10 and 11, whereupon a cation active collector of the formula RO--(CH.sub.2).sub.n --NH--(CH.sub.2).sub.n --NH.sub.2 is added to recover an impurity-containing froth of low chloride level and a concentrate containing most of the chlorides of said slag.

REFERENCES:
patent: 1931921 (1933-10-01), Breerwood
patent: 2942792 (1960-06-01), Anderson
patent: 3207304 (1965-09-01), Thom
patent: 3363758 (1968-01-01), Cronberg
patent: 3441131 (1969-04-01), Gebaver
patent: 3650396 (1972-03-01), Gillespie
patent: 3675859 (1972-07-01), Mitchell
patent: 4070273 (1978-01-01), Morey
patent: 4113466 (1978-09-01), Weston
patent: 4126073 (1978-11-01), Cromwell
patent: 4168227 (1979-09-01), Polgaire

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