| 摘要 |
<p>The present invention relates to a process for separating scrap essentially consisting of non-ferromagnetic metals into several fractions by specific gravity in which only one heavy separating medium is required. The scrap has been recovered from waste products composed of metals and non-metals by reducing the particle size of the waste through grinding to a size less than 50 mm including particles as small as 0.5 mm. Thereafter, the ferromagnetic components are magnetically separated from the ground waste and the ground waste is fed to a primary specific-gravity separator where non-metallic components are separated from the non-ferromagnetic portion of the ground waste. Thereafter, further separation of the non-ferromagnetic portion in a secondary and, in some cases, tertiary separators is accomplished.</p> |
