Upgrade of aluminium scrap
For aluminum smelters the use?of aluminum scrap is cheaper than the use of primary aluminum but the typical high content of Zinc, Copper, Ferrous and Magnesium in scrap aluminum results in the use of scrap aluminum generally limited to no more than 10%.
The?different SGM technology separators, including X-ray sorters, eddy current separators and magnetic ferrous separators process the scrap aluminum and segregate the parts with a high content of Zn, Cu, Fe and Mg from the aluminum scrap.
The result is a main stream of scrap aluminum with Zn, Cu, Mg and Fe reduced by a multiple of times. With aluminum profile scrap, Zn can pass from the typical 0,16-0,25% down to 0,03-0,05%. With taint?tabor, Zinc can pass from the typical 0,5% down to 0,10-0,15% and in the case of tense, can pass from the typical 5-6% down to 1-2%.
The result of the SGM technology and experience?allows for increasing the percentage of the aluminum scrap in the infeed material to the smelter to over 80% leading to important savings on the aluminum sourcing cost.