Indium Recovery Relies on Acid Solution

Indium recyclingClick to enlargeTo address the potential shortage of indium – a component of touchscreens – scientists have developed a new way to recover the metal through recycling. Writing in the journal ACS Sustainable Chemistry & Engineering (, they found that the most effective method was to crush and grind glass into particles less than 75µm in size. The particles were then bathed in a sulfuric acid solution at 50°. ‘[T]he obtained results and findings could contribute to affording a closed-loop recycling process for waste LCDs and sustainable development of indium industries’, the group wrote.