solar_plasma
Well-known member
Just found a text about recovery and refining of those metals from e-scrap. Sorry, again in german, but the international formulas and process diagrams are worth to have a look and should be readable and informative without any german language skills.
http://www.metallurgie.rwth-aachen.de/data/publications/artikel_ettling_id_3502.pdf
http://www.metallurgie.rwth-aachen.de/data/publications/artikel_ettling_id_3502.pdf