Patent · US Active

System and method for treating shredder residues and utilizing a produced fiber fraction

US8056729B2 · kind B2 · utility

0Cited by

19References

27Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Daniel Goldmann · Goslar, DE
Bram den Dunnen · Braunschweig, DE
Michael Knust · Bargteheide, DE

Key dates

Filing date	Mar 22, 2007
Grant date	Nov 15, 2011
Priority date	—
Expiry date	Mar 30, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/52
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

In a method for sorting shredder residues of metal-containing wastes, in particular of vehicle bodies, where the shredder residues are separated into a shredder light fraction and a non-ferromagnetic fraction) and a system for implementing the method, (a) a crude-fiber fraction being generated during the processing of the shredder light fraction and the shredder heavy fraction in preliminary processes and a main process, by extracting at least a ferromagnetic fraction, a fraction containing nonferrous metals, a granulate fraction, and a sand fraction, and (b) the crude-fiber fraction being separated into a metal-containing dust fraction, a fiber fraction depleted in metals, and a metallic fraction in a refining process, using the successive process steps of metal-balling, dust removal, and density separation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.