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is there any replacement for cyanide during gold extraction? if yes,then how safe is that chemical? can it have higher extraction than cyanide? also there is a new product that can substitute cyanide in gold leaching. its called gold dressing agent. nikita gupta commented on sag mill vs ball and rod mill.
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with lower gold grades beneficiation usually flotation is often used ahead of leaching to increase the grade of au and reduce the quantity of ore to be leached. nature of gold: the surface of a gold particle will typically be dissolved at a rate of around 0.2-0.5 µm of surface depth per hour in a cyanide leach. for large gold particles and