EXCLUDING mechanical, smelting, and amalgamation processes, the methods of extracting gold from its ores may conveniently be grouped together under the heading of wet or chemical methods. In these, ...
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Chinese scientists recover 98% of gold from old phones in 20 minutes at low cost
Chinese researchers have discovered a fast, low-cost and environmentally cleaner method for extracting gold ...
ETH Zurich researchers have developed a sustainable method to recover gold from electronic waste. The method uses a sponge made from denatured whey proteins that selectively adsorb gold ions. The ...
Scientists have figured out a way to recycle important metals trapped inside electrical waste. Using textiles, researchers from the Korea Institute of Science and Technology (KIST) have improved the ...
The wildcat gold mining boom that swept across the Amazon beginning in the 1970s left behind an environmental catastrophe of ...
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