an Oak Ridge National Laboratory report stated that we'll have up to 350,000 tons of scrap aluminum per year, from automobiles, in North America.

"Using remelted scrap instead of primary aluminum is estimated to result in up to 95% reduction in the energy needed for processing a part," explained Amit Shyam, who leads the lab's Alloy Behavior and Design Group.

https://www.thecooldown.com/green-business/reddit-hotel-ocean-view-styrofoam-balcony-polystyrene

All some innovative person has to do is figure out how to separate the good aluminum scrap from the junk, and it won't by using a magnet. Too damn simple, and won't work on Aluminum. 

Once they figure out how to pick out the good stuff, from the junk... then, how to melt it, pure, and then what to make from the new stuff. I'm thinking sell it to computer and cell phone manufactures... they'll always need lots of aluminum. Flatscreens too. Maybe radiators and heat exchangers.

https://www.canarymedia.com/articles/clean-aluminum/alcoa-riotinto-hit-low-carbon-production-milestone

the Hall–Héroult process, a 19th-century method that uses big blocks of carbon, accounts for almost one-sixth of the greenhouse gases associated with producing new aluminum globally.

Earlier this month, the Canadian firm Elysis said it hit a major milestone when it deployed an industrial-size, carbon-free anode inside an existing smelter in Alma, Quebec. Elysis is a joint venture of the U.S. aluminum giant Alcoa and global mining company Rio Tinto