Patent ID: 6864294

Claim:
A method for recycling plastic material, comprising the steps of: pulverizing thermoplastic containing a metal; cleaning the pulverized thermoplastic; removing a cleaning solution from the cleaned thermoplastic to dry the thermoplastic; and removing from the dried thermoplastic solid matter other than the thermoplastic, wherein the step of removing the solid matter comprises at least one of gravity separation using a true density difference between the thermoplastic and the solid matter, magnetic separation using a magnetic force, and metal separation using an eddy current, wherein gravity separation is performed underwater, and a true density difference between the thermoplastic and the solid matter to be separated is not less than 0.5, and wherein magnetic separation uses a magnet having a residual magnetic flux density of not less than 1 tesla, and the thermoplastic and the solid matter are brought into contact with a magnetic pole of the magnet.