| 摘要 |
Recovery of industrial or sorted collector's waste containing at least one malleable, thin sectioned material such as copper, tin, lead, silver, aluminum or malleable alloys and/or plastic materials which are malleable at selected temperatures, such as thermoplastics and thermoplastic rubbers, is accomplished in a dry process by first cutting and/or grinding to a suitable size and thereafter impacting in a manner to form the malleable materials into spheroids having apparent densities in proportion to their malleabilities. Thereafter, the spheroids are more easily and effectively separated by conventional means, such as gravity tables. The resultant polished spherized or shotted material is more effectively re-used and constitutes an upgraded product.
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