Abstract: A method selectively recovers a useful substance from waste including a chlorine-containing synthetic resin and metal copper in a mixed state. Metal copper is recovered from coated copper-wire waste. The method includes the steps of heat-treating the waste in form of coated copper wires, each having a coating material made of a chlorine-containing synthetic resin, in oil or under a non-oxygen condition. Here, the coating material is carbonized and a chlorine content of the coating material is reduced. Then the coating material and the copper wire are separated from each other the copper wire is recovered. The chlorine-containing synthetic resin can be treated without generating dioxin.

Abstract: [Object] A technique is provided which selectively recovers a useful substance from waste including a chlorine-containing synthetic resin and metal copper in a mixed state. [Solving Means] In a method for recovering metal copper from coated copper-wire waste, the method includes the steps of heat-treating the waste in form of coated copper wires, each having a coating material made of a chlorine-containing synthetic resin, in oil or under a non-oxygen condition, thereby carbonizing the coating material and reducing a chlorine content of the coating material, and separating the coating material and the copper wire from each other, thereby recovering the copper wire. [Advantageous Effect] Because of enabling the chlorine-containing synthetic resin to be treated without generating dioxin, the present invention is useful in recovering the metal copper from the coated-wire waste.