Process for recovery of values from solid waste materials

B - Operations – Transporting – 03 – B

Patent

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B03B 5/68 (2006.01)

Patent

CA 2166444

Process for separating valuable solid materials from a mixture of waste scrap materials which comprises adding water and sand to a volume of scrap, such as chopped insulated wire, to obtain a feed of about 70-80% solids by weight; subjecting the feed mixture to vigorous agitation; screening out large foreign materials; subjecting the screened mixture to a dense medium separation with the introduction of water to produce a fluidized bed in the separation zone; removing light stream from the separation zone and screening to recover insulation material particles; and removing a heavy stream from the separation zone and screening to recover metallic particles.

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