cyanide process


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Words related to cyanide process

an industrial process for extracting gold and silver by treating ore with a sodium cyanide solution

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Design of the Bidi ore processing plant also benefited from the adaptation of the cyanide process at Bau to meet local conditions.
The ores are free milling, and there is no evidence of a rebellious nature which might interfere with the extraction of the gold by amalgamation and the ordinary cyanide process.
Ray Lazuk, Superintendent of Environmental and Public Affairs for the Golden Sunlight Mine, the only large-scale cyanide process mine which would have the grandfather privilege to continue, pointed out that "[c]yanide is no different than other industrial chemicals that are out there right now in Montana.
The cyanide process of extracting gold from lowgrade ore was introduced at about this time.
Ore material previously processed from the Heva mine had demonstrated that this deposit does not have problems related to the presence of arsenopyrite and has a gold recovery rate of 97 per cent to 99 per cent by cyanide process.
Carbon matter is a significant component in some ores, but is generally inactive in the cyanide process, especially for the Betze and Post deposits.
Ore material previously processed from the Heva mine has demonstrated that this deposit does not have problems related to the presence of arsenopyrite and has a gold recovery rate of 97 per cent to 99 per cent by cyanide process.
In 1913, Dorr undertook the operation of a small mill in South Dakota for the extraction of gold by the cyanide process.