#GoldExtraction from #EWaste gets 10 times more efficient with new sponge material

Researchers developed a nanoscale cross-dimensional composite material via self-assembly of two-dimensional graphene oxide and one-dimensional chitosan macromolecules.

By Prabhat Ranjan Mishra, Oct 27, 2024

"Researchers have developed a new type of material that’s 10 times more efficient at extracting gold from e-waste than previous adsorbents. Developed by chemists and materials scientists at the National University of Singapore, the material is a type of sponge made of #GrapheneOxide and #chitosan [shrimp shells].

"The material can reportedly transform the way gold is extracted from electronic wastes, which has been described so far as a dirty business with low yields and results in toxic #pollutants.

"The cheaper, cleaner and efficient method was tested by researchers using real e-waste provided by a recycling company."

[...]

"While the present work focused on gold, the team say the technique could be adapted to recover other valuable metals such as #silver, #platinum or #palladium from #ElectronicWaste or even #mining residues. And that is not all: as well as e-waste, the technology might be applied to a wider range of environmental cleaning efforts, such as filtering out #HeavyMetals from #PollutedWater sources or industrial effluents, reported Physics World."

Read more:
https://interestingengineering.com/innovation/gold-extraction-from-e-waste-sponge


Article in Physics World - Eco-friendly graphene composite recovers gold from e-waste

24 Oct 2024

https://physicsworld.com/a/eco-friendly-graphene-composite-recovers-gold-from-e-waste/

#SolarPunkSunday #NoGoldMining
#EWasteRecycling #MetalsExtraction #Electronics #RareEarthMinerals #Recycling #NewTechnology #ShrimpShells

Balochistan - Where Insurgency, Rare Earth Minerals, and Great-Power Rivalry Converge

#Balochistan #Terrorism #RareEarthMinerals #TechnoGeopolitics #MineralSovereignty #ResourceGovernace #Pakistan

https://www.wgi.world/balochistan-where-insurgency-rare-earth-minerals-and-great-power-rivalry-converge/

Watch Live | JD Vance Speaks At Critical Minerals Meet | Marco Rubio | White House

The United States is hosting ministers from dozens of countries for a critical minerals conference in Washington, DC, this week. Officials are seeking to strengthen and diversify their nations’ stockpiles of critical minerals, which are essential for the defence industry and for the development of artificial intelligence. #jdvance #rareearthminerals #criticalminerals #usa #liveMint is an…

https://fllics.com/en/video/watch-live-jd-vance-speaks-at-critical-minerals-meet-marco-rubio-white-house/

How difficult is it to mine rare earth minerals in Greenland?

A geologist at the Geological Survey of Denmark and Greenland discussed potential difficulties of mining rare earth minerals in Greenland.

Diogo Rosa said: “Everyone talks about the rare earths again and that doesn’t mean they are the most feasible to be extracted.”

https://mediafaro.org/article/20260113-how-difficult-is-it-to-mine-rare-earth-minerals-in-greenland?mf_channel=mastodon&action=forward

#Greenland #Minerals #Mining #RareEarthMinerals #RareEarths #Denmark

Japan decries Chinese export restrictions that could cripple defenses

MANILA, Philippines — The Japanese government has urged China to withdraw sweeping export restrictions on dual-use items that…
#NewsBeep #News #Headlines #China #circulated-defense-news #defense-news #dn-dnr #exportrestrictions #Japan #rareearthminerals #taiwan #World
https://www.newsbeep.com/352465/

Venezuela, for oil "independence" and the ability to maintain prices high enough to keep domestic shale production profitable.

Greenland for rare earth minerals, and oil, and to weaken China's grip on the supply of such minerals. Climate change denial, thus hastening the melting of polar ice and permafrost, is part of the strategy to make mining and drilling more economically feasible.

#Venezuela #Greenland #oil #RareEarthMinerals #war #imperialism