New method can extract precious metals from old mobile phones, computers and home appliances in less than 20 minutes.
After the discovery of a 17-pound nugget in Little Meadow Creek, North Carolina, the state became a major hotbed of gold mining as a part of the first American gold rush in 1799. Early discoveries ...
New method can extract precious metals from old mobile phones, computers and home appliances in less than 20 minutes.
Artisanal and small-scale gold mining in Brazil’s Tapajós River Basin emits 16 metric tons of CO2 per kilo of gold produced, and 2.5 metric tons of mercury annually, a study has found. Researchers ...
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Chinese scientists recover 98% of gold from old phones in 20 minutes at low cost
Chinese scientists have developed a rapid e-waste mining method that extracts gold in under 20 minutes at around one-third of ...
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