| 摘要 |
1. Process for the processing of finely divided aluminium scrap by melting the scrap in an aluminium melt and separating the pulverized dross which has risen to the surface, characterized in that the treatment space from the surfacing point of the dross from the melt up to the dross-removal point is, with the exclusion of air, under at a partial oxygen pressure of at most 5 kPa, and that the dross is draw off continuously from the melt surface, is fluidized by means of vibration, is conducted through a zone of indirect cooling and as a result is cooled down to below 200 degrees C, the path of the dross up to the point where it is cooled down to below 200 degrees C being, with the exclusion of air, under a partial oxygen pressure of not more than 5 kPa. |
