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The development of secondary magnesium alloys requires a completely different concept compared with standard alloys which obtain their corrosion resistance by reducing the levels of impurities below certain alloy and process depending limits. The present approach suitable for Mg–Al based cast and wrought alloys uses a new concept replacing the β-phase by τ-phase, which is able to incorporate more...
A hydrometallurgical route for recovering of scandium from magnesium, aluminium and iron dross or scrap was developed and the extraction isotherm for scandium with HDEHP established. After a single stage of leaching, extraction and stripping, nearly 100% recovery of scandium as scandium oxide resulted, while the separation of magnesium from scandium was also nearly 100%. About 10% of the iron input...
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