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 ...
VANCOUVER, British Columbia, Sept. 22, 2020 (GLOBE NEWSWIRE) -- Ultra Resources Inc. (TSX-V: ULT) (“Ultra Resources” or “the Company”) is pleased to announce that it has received final results of ...
Gravity recovery results were: 11 – 21% for Ag and 15 – 35% for Au. The 96 hour cyanidation leach time tests included the addition of 250 g/t lead nitrate. Approximately 120 kilograms of samples from ...
After a long and contentious public comment process, Desert Mineral Mining received a permit last spring to build a cyanide-leaching gold mill 20 miles east of Boise. Now the company has decided to ...
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