Patent ID: 6193780
Filing Date: 2001-02-27
Classification: B29B,B29K,B29L,C10B,C10G,C22B,F23G,F27B,Y02P,Y02W,Y10T

Abstract:
A process for the recovery of aluminum and energy from used packages comprising:providing such packages in a condition wherein an outer paper wrapper has been removed leaving an aluminum sheet between first and second polyethylene film layers;providing an oven having a chamber having a wall;maintaining the wall between 200.degree. C. and 660.degree. C.;passing the sheets through the chamber along a path of travel of a length effective to permit pyrolysis of the polyethylene film layers;collecting a heavy fraction from the polyethylene pyrolysis;causing a flow of gas to entrain a light fraction from the polyethylene pyrolysis;collecting the entrained light fraction; andcollecting the aluminum sheets remaining from the polyethylene pyrolysis.