Improved dross feedstock

Abstract

To provide improved handling and treatment of dross from aluminum recycling such that the dross can be more easily and efficiently handled.SOLUTION: The efficiency of roasting black dross can be improved by pre-processing the black dross before roasting. The black dross can be crushed and reconstituted into pellets having internal channels. The internal channels can be filled with additives designed to fully oxidize during the dross roasting process, enabling the internal channels to be open and gas to flow therethrough during the dross roasting process. The crushed black dross can be crushed to pieces below 10 mm and screened for large pieces prior to pelletizing to ensure consistent pellets. Optionally, an eddy current separator can remove some metallic aluminum from the crushed black dross prior to the pelletizing.SELECTED DRAWING: Figure 1

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