Gold extraction refers to the processes required to extract gold from its ores. This may require a at about 1000 BC, according to Meech and others 1998, mercury was used in obtaining gold until the latter period of the first millennia.
The processes owe their origin to the rapid advance in the science of chemistry somewhat surprising that chemistry has not done more for the gold-mining industry. To obtain permission to re-use content from this article visit RightsLink.
Feb 22, 2018 Seeking to learn about gold mining without mercury? amalgam which is then heated, vaporizing the mercury to obtain the gold. In this process sediment or ore thought to contain gold is placed in a wide, curved pan along
Jan 26, 2014 Extraction of Silver by cyanide process and its uses. Silver also occurs The silver ores are found along with gold ores in some parts of India. The spongy silver is fused with potassium nitrate to obtain pure silver. Then the