Researchers Discover New Method That Recovers Valuable Minerals from Electronic Waste
Researchers have discovered a new method of extracting minerals from electronic waste that uses significantly less energy than current techniques, produces ecofriendly waste and can reduce the demand for mined raw materials. The method is based on the flash Joule heating method, which was designed to produce thin graphene from carbon sources such as plastic and wood. New adaptations by a group of researchers from Rice University will allow the technique to be used to recover substances including silver, gold, palladium and rhodium from waste, so they can be reused. The method works by heating the waste to 3,124 degrees…