"Fly ash" contains rare earth elements needed for electronics
Feb 19, 2022Tour''s team has now demonstrated that a process called "flash Joule heating," which it developed to produce graphene, can be used to extract rare earth elements from fly ash, too. This process heats the fly ash to 5,432 degrees Frenheit in a second to break the glass. Using a very mild acid, the researchers could then extract twice as ...
