Recovery of salvageable components from waste materials

Details Recovery of salvageable components from waste materials Recovery of salvageable components from waste materials

1974-10-07

1976-03-23

Custer, Jr., Granville Y.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241DIG38, B02C 2326

Patent

active

039455750

ABSTRACT:
Mixed solid waste, such particularly as municipal waste, is subjected to a pulping action which results in fragmenting the glass and metal constitutes into particles of similar size, with the cast and foil aluminum being converted into the form of chunks and pellets respectively while the aluminum which is present as alloy, such as is used in cans and other food containers, is cut into flake-like particles, after which the mixed particles are dried and then subjected to agitation causing the flakes of aluminum to be concentrated at the top of the mix for separate removal by skimming or scalping. The remaining mixture of glass, aluminum and other materials is then subjected to high tension electrostatic treatment effecting separation of the glass from the other materials.

REFERENCES:
patent: 2212467 (1940-08-01), Constant
patent: 2275849 (1942-03-01), Fraser
patent: 2586574 (1952-02-01), Smith
patent: 3605243 (1971-09-01), Oster
patent: 3650396 (1972-03-01), Gillespie et al.
patent: 3667601 (1972-06-01), Johnston et al.
patent: 3720380 (1973-03-01), Marsh

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