| 摘要 |
<p>The application describes methods and apparatus for recovering materials from waste carpet and of the like products. The carpet material is initially shredded into coarse pieces. These are optionally dried and then subjected to cooling to embrittle at least one components, such as a polymer backing material, while leaving other component e.g. tuff fibres, flexible. In the cooled condition, the pieces are subjected to mechanical action such as hammering or rolling to break up the embrittled material, and these fragments are separated from the other material and recovered. Preferably a drying stage is applied after the mechanical fragmentation, before separation. The procedure may be repeated, optionally with different temperatures to selectively embrittle and fragment different components and facilitate their separation.</p> |
