Extracting Gold . HowStuffWorks
The carbon moves to a stripping vessel where a hot caustic solution separates the gold from the carbon. Another set of screens filters out the carbon grains, which can be recycled for future processing. Finally, the gold bearing solution is ready for electrowinning, which recovers the gold from the leaching chemicals.
A Review on Alternative Gold Recovery Reagents to Cyanide
Aug 15, 2016 . problems during chemical processing. New leaching reagents and new leaching techniques have been searched in order to overcome environmental problems caused by cyanidation. Moreover, dissolved gold in less toxic or nontoxic solutions are also more suitable for further lab scale researches , .Get Price