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quartz gold oxide raosting

quartz gold oxide raosting

In the case of many complexgoldand silver oresroastingbefore cyanidation is essential if satisfactory extraction of the precious metals is to be obtained. In such cases no practical amount of grinding or prolonged contacting of the raw ore with cyanide solution will affect more than a certain low extraction; in other cases, while the extractions may be acceptable, the consumption of ...

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