(mining.com) - Researchers at the University of Cagliari in Italy and Imperial College London developed a method for extracting gold from printed circuit boards, SIM cards and other electronic waste, as well as a process for using the recovered gold in drug manufacturing.
In a paper published in the journal ACS Sustainable Chemistry & Engineering, the scientists explain that the extraction method involves selective steps for the sustainable leaching and recovery of base metals like nickel, then copper, silver and, finally, gold, using green and safe reagents.
