Nov 09, 2015 5. Flotation process or a weak cyanide solution to the slurry, this process removes up to 93 percent of the gold and 70 percent of the silver from the ore. And then the gold is pulled from the solution and attaches to the carbon. We then strip the gold from the carbon by washing it with a caustic cyanide solution. The carbon is later recycled. 6.
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