Patent ID: 6329436
Filing Date: 2001-12-11
Classification: C08J,Y02W

Abstract:
A process operating at substantially atmospheric pressure for recycling shredder residue, comprising mechanically separating any polyurethane foam materials present, separating a fines fraction of less than about 1/4 inch leaving a plastics-rich fraction, sequentially contacting the plastics rich fraction with a series of solvents beginning with one or more of hexane or an alcohol to remove automotive fluids; a acetone to remove ABS; one or more of EDC, THF or a ketone having a boiling point not greater than about 125.degree. C. to remove PVC; and one or more of xylene or toluene to remove polypropylene and polyethylene, recovering and recycling the solvents, thereby producing streams rich in ABS, PVC and one or more of polypropylene and polyethylene.