Magnetic pulleys are used in series for dryseparation, with the first pass dryseparation to ensure a 8%-10% tailings discarding and the second pass to ensure an over 98% recovery.
Ammonia and sulfuric acid (SO3) in and the reaction liquid after vacuum evaporation, concentration, crystallization, and then to liquid-solid separation processes obtained dry product.
The active pulsing air separation is a new method for dry material classification, which is specially suitable for electronic scraps disposal and re-utilization.