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 ...

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, ...

Scientists at Australia’s national science agency, CSIRO, have developed a new process designed to improve gold recovery and recycle toxic cyanide used in mining. The method, called ‘Sustainable Gold ...

A Chinese man has extracted 191 grams of gold from old SIM cards, worth Rs 26 lakh, revealing a risky yet fascinating method ...

Add Yahoo as a preferred source to see more of our stories on Google. Chinese researchers have discovered a fast, low-cost and environmentally cleaner method for extracting gold from electronic waste, ...

In 2022, humans produced an estimated 62 million tonnes of electronic waste – enough to fill more than 1.5 million garbage trucks. This was up 82 per cent from 2010 and is expected to rise to 82 ...