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Global Initiative Mines Retired Hard Disk Drives for Materials and Magnets (ieee.org)
29 points by xdze2 7 days ago | hide | past | web | favorite | 6 comments

> In Tennessee, the leftover waste slag from metal recovery facilities, which contains rare earth elements including gold, platinum, and “all that good stuff,” is used as filler material for paving roads...

in some other places they use broken toilets instead

Demagnetised by heat.. but can be demagnetised?

Heat the thing above its Curie temperature, and it loses its magical powers: https://en.wikipedia.org/wiki/Rare-earth_magnet#Magnetic_pro...

Then why reclaim by heating?

You don’t keep them that hot forever...

de-magnetised while hot is not the same as demagnetised by .. misunderstood what was being said. I thought it was a permanent de-magnetisation

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