Sodium Cyanide Gold Mining - 国际版 Bing

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Cyanide - Wikipedia

A cyanide is a chemical compound that contains the group C≡N. This group, known as the cyano group, consists of a carbon atom triple-bonded to a nitrogen atom.. In inorganic cyanides, the cyanide group is present as the anion CN −. Salts such as sodium cyanide and potassium cyanide are highly toxic. Hydrocyanic acid, also known as hydrogen cyanide, or HCN, is a highly volatile liquid that,Processing, smelting and refining gold | World Gold Council,For extracting gold from low-grade ores, heap leaching is practiced; huge heaps are sprayed with a dilute solution of sodium cyanide, and this percolates down through the piled ore, dissolving the gold. There are very well defined rules for the safe and responsible use of cyanide – as laid out in the International Cyanide Code. Gold refiningNew South Wales,In the cyanidation method solutions of potassium or sodium cyanide pass through the finely crushed ore, dissolve the gold, and drain into vats or tanks. Several solutions may be allowed to ‘attack’ the ore before metallic zinc in the form of shavings or dust is added to precipitate the gold.,This gold mining area can be found 450 km SW,

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