background note on cyanide in gold mining European Parliament
Sep 25, 2013 . Cyanide toxicity in humans most commonly occurs from inhalation of cyanide gas or . process for gold extraction is hydrometallurgical recovery (gold cyanidation), which involves . and require more aggressive reagents to dissolve the gold. . Cyanidation remains by far the most widely used technique.
a review of copper cyanide recovery for the . 911 Metallurgist
cyanide complexes, including copper, are highly toxic to most forms of life. . copper prior to cyanidation for gold using reagents such as dilute acid, iron(III), .. Thus, in this situation some cyanide remains complexed with the precipitated.Get Price