Continuous recovery of base metal from insulated wire scrap

Abstract From the Canadian patent

A procedure and apparatus are shown for on a continuous, commercially practical basis recovering a nonferrous base metal, such as copper or aluminum in the form of clean, bright metal pieces or bits and for enabling recovery of different non-ferrous coating metals, such as of lead tin or, alloys thereof, and under conditions in which a resin insulating coating may be present. Mechanical shredding means is used for reducing insulated wire to an aggregate containing bits particles or pieces within a requisite size range extraneous, magnetics are removed, and the content of resin coating material is reduced under dry conditions to within a maximum of 2%. A preliminary step for attaining a less …