Aluminum recycling has long been practiced because it is easy
to reuse in high value applications and because of the energy savings.
Up to 95% of the energy used for the same amount of primary
aluminum production is saved by recycling (Kamberovic et al.,
2009; Zhou et al., 2006). The environmental benefits of aluminum
recycling are also convincing. Only 5% of the CO2 is produced compared
to the production of virgin aluminum, and even less when
the complete global cycle including mining and transport is considered
(International Aluminum Institute, 2007).