Dear EarthTalk: Most gold mining operations use cyanide to extract gold from surrounding rock. What are the environmental implications of this, and are there alternatives? --J. Pelton, via e-mail ...

The patent-protected flowsheet uses the same front-end as traditional cyanidation-based processing, but where cyanidation oxidises the gold to make gold cyanide, the Cycladex process leaches gold from ...

Since the modern gold rushes of the 1970s and 1980s, gold has been one of Australia's major exports. Australia is the second-largest gold producer globally behind China and holds the second largest ...

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Sawarda — The residents of Sawarda and neighbouring villages in Sudan's Northern State have welcomed the decision of the state government on Sunday to close a gold cyanidation plant in the area. For ...

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