The invention relates to a recycle method for waste metal. It includes the following steps: under plenty air situation, using hydrochloric acid to process waste plastic metal plate to make chlorination salt of copper, nickel and chrome, adding vitriol to make sulfate that would be easily crystallized to copper sulfate, nickel sulfate, etc, taking separation; the processed waste plastic would be made to plastic particle after washing. The solution in process would be circularly used. And there is no waste water to exhaust. The invention has the advantages of low cost, no pollution and high economic and social benefits. |