| 摘要 |
<p>1. A process for reprocessing sprent primary cells, in particular appliance batteries, such as carbon-zinc, batteries and alkali-manganese batteries, in which the batteries are previously sorted to separate accumulators, and button cells and mechanically broken up, characterised in that the mechanical breaking-up is effected using impact mills (2, 7) and subsequent screening (3, 8), in that after an initial mill passage and after an initial screening the scren overflow (4) undergoes a magnetic separation (5) so as to separate a scrip function, in that the portion of the screen overflow not separated after an initial magnetic separation (5) undergoes a second mill passage through an impact mill (7), optionally via a second magnetic separation (6), whereupon screening is again carried out and magnetic constituents are separated, in that the material (25) which has passed through both screening operations (3, 8) is filtered and washed to separate alkaline and ammonium salts and then subjected to a thermal treatment (29), in that the non-magnetic fraction from the screen overflow (9) of the two screening operations (3, 8), which fraction cannot be comminuted with the respective impact mill used, is fed to the thermal treatment (29), and in that the magnetic fraction (12, 17) of the screen overflow (9) of the second screening operation (8) is treated separately.</p> |
