| 摘要 |
The present invention is a process for stripping coated plastic materials wherein the plastic is coated with a copper inner layer, and at least one outer layer formed of either nickel or chromium. Alternatively, the plastic can be coated with at least two outer layers formed of nickel and chromium. The process employs a combination of physical and chemical processing. First, the plated plastic is crushed by mechanical means to form a plurality of plated plastic particles. These particles can then be scrubbed to remove the nickel and/or chromium outer layers from the copper-coated plastic material. The nickel and/or chromium layers can be separated from the copper-coated plastic material. The copper-coated plastic material is treated with a chemical solution to dissolve the copper inner layer. the copper metal is thus separated from the plastic material. The chemical solution used to dissolve the cooper inner layer can be regenerated to a form in which it can be reused to successively treat additional samples of copper-coated plastic material, once the nickel and/or chromium are removed from the plated plastic material.
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