Extracting gold from ore is a poisonous business. The most common method is cyanide leaching, where cyanide salts in solution are used to suck the gold out from its ore. You get gold, but you also get ...

Researchers have found a greener, safer way to get gold from ore and discarded electronics. This innovative approach promises to cut down on the toxic waste associated with gold extraction. On June 26 ...

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, ...

There's treasure in trash — literally. Discarded computers, circuit boards, and other electronic waste contain valuable metals like gold. Now, breakthrough research could make extracting gold easier ...

Over the previous decades, applications of acid digestions for the determination of gold have reported low or variable gold recoveries from geological samples on a consistent basis. 1,2 Poor gold ...

KEDOUGOU, Senegal (AP) — The quickest way to separate gold from rock, Sadio Camara says, is with a drop of mercury. She empties a dime-sized packet of the silvery liquid into a plastic bucket of muddy ...