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Method and device for recovery of scrap goods

  • US 5,139,203 A
  • Filed: 01/31/1990
  • Issued: 08/18/1992
  • Est. Priority Date: 06/19/1989
  • Status: Expired due to Fees
First Claim
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1. A method for recovery of scrap goods containing non-metallic and metallic constituents comprising(a) subjecting the scrap (S) to at least one mechanical crushing operation in a closed system, and(b) subjecting the crushed scrap to at least one dry separation procedure in a closed system wherein no additional processing materials are added to the scrap, and wherein the separation procedure is performed by magnetic as well as electrostatic separation to produce a non-metallic fraction (A), a magnetic metal fraction (B) and a non-magnetic metal fraction (C) in granular and powder forms, the metal fractions (B, C) being suitable for further processing by at least one of the pyrolysis-free separation procedures selected from the group consisting of wet chemical separation and electrolytic separation.

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