Pulling gold out of e-waste suddenly becomes super-profitable
2024年3月4日 · A new method for recovering high-purity gold from discarded electronics is paying back US$50 for every dollar spent, according to researchers – who found the key gold-filtering substance in...
Extracting Pure Gold: Turning Electronic Waste Into Treasure
2024年4月23日 · Researchers at KIST have developed a fiber-based adsorbent capable of recovering gold from electronic waste with over 99.9% efficiency. Credit: SciTechDaily.com. A fibrous adsorbent selectively recovers high-purity gold from waste.
From Trash To Treasure: New Method Turns Electronic Waste Into Gold
2024年3月10日 · To recover gold in the laboratory experiment, the team salvaged the electronic motherboards from 20 old computer motherboards and extracted the metal parts. They dissolved these parts in an acid bath so as to ionize the metals. How the gold is recovered: Gold ions adhere to a sponge of protein fibrils.
Scalable and selective gold recovery from end-of-life electronics
2024年2月8日 · Selective recovery of gold from electronic waste using mild reagents is a challenge. Now a photocatalytic technology is reported to enable highly selective gold dissolution through solvent pH...
Utilizing cost-effective pyrocarbon for highly efficient gold …
2024年7月20日 · Here we demonstrate an environmentally-benign and practical approach for gold recovery from E-waste leachate using alginate-derived pyrocarbon sorbent.
Comprehensive Study on the Recovery of Gold and Copper from …
1 天前 · In gold mining enterprises, the substantial pyrite cinder washing solution is rich in valuable elements such as gold and copper, which are suitable for comprehensive recycling. However, traditional recovery processes are mostly inefficient. This study presents two innovative processes, including sulfide precipitation-micropore filtration and neutralization precipitation-micropore filtration ...
Graphene efficiently recovers gold from waste electronics - New …
2022年8月22日 · Researchers have developed an efficient new way to use graphene to recover gold from electronic waste, without needing any other chemicals or energy. Beyond its superficial uses in...
Why your laptop is a gold mine - BBC
2023年9月7日 · Later this year, the Royal Mint is opening a new multi-million-pound factory which will be able to process 90 tonnes of circuit boards per week once fully operational, recovering hundreds of...
Recovery of gold from secondary sources—A review
2012年3月1日 · Coal-oil gold agglomeration (CGA) process is based upon the recovery of hydrophobic/oleophilic free gold particles from primary and secondary sources of slurries; gold grains ranging from 1 to 100 μm can be recovered with ease. Oil serves as a bridge between coal and gold particles, used oils are diesel oil, kerosene and vegetable oil as ...
Angewandte Chemie International Edition - Wiley Online Library
4 天之前 · Extraction of gold from secondary resources such as electronic waste (e-waste) has become crucial in recent times to compensate for the gradual scarcity of the noble metal in natural mines. However, designing and synthesizing a suitable material for highly efficient gold recovery is still a great challenge.