Stamets@lemmy.dbzer0.com to People Twitter@sh.itjust.works · 2 months agoSolitary, in factlemmy.dbzer0.comexternal-linkmessage-square59fedilinkarrow-up1429arrow-down19
arrow-up1420arrow-down1external-linkSolitary, in factlemmy.dbzer0.comStamets@lemmy.dbzer0.com to People Twitter@sh.itjust.works · 2 months agomessage-square59fedilink
minus-squareAxExRx@lemmy.worldlinkfedilinkarrow-up11·2 months ago75% of all aluminum ever mined is still in circulation- its also more efficient- recycling aluminum takes 5% of the energy it takes to produce it.
minus-squarejif@piefed.calinkfedilinkEnglisharrow-up3arrow-down3·2 months agoBut you can’t recycle it when it’s dirty
minus-squareandyspam@sh.itjust.workslinkfedilinkarrow-up13arrow-down1·edit-22 months agoI have melted and cast ingots from thousands of dirty aluminum cans. Rinsing first is ideal of course, but all the crap floats to the top of the molten metal as slag and you can scoop it off to discard.
75% of all aluminum ever mined is still in circulation- its also more efficient- recycling aluminum takes 5% of the energy it takes to produce it.
But you can’t recycle it when it’s dirty
I have melted and cast ingots from thousands of dirty aluminum cans. Rinsing first is ideal of course, but all the crap floats to the top of the molten metal as slag and you can scoop it off to discard.