In conventional heap leaching process, the solid particles (crashed ore or aggregated mineral concentrate) are disposed on a sloped impervious surface, and on the top a leaching solution (sulfuric or ...

At Flinders University, scientists have cracked a cleaner and greener way to extract gold—not just from ore, but also from ...

Scientists at Flinders University developed a safe, sustainable way to extract gold from e-waste and ore - without mercury or cyanide.

HELENA -- An industry-backed poll cited as evidence that Montanans overwhelmingly support repeal of a 1998 ban on cyanide leach mining for gold and silver is "skewed and intentionally misleading," ...

Thiosulfate Leaching: A gold extraction process that employs thiosulfate as a lixiviant, providing a less toxic alternative to cyanide. Pregnant Leach Solution: The solution that results after ...

Gold and Silver Recoveries were variable based on grade and material type (See table below for recovery equations). Heap leach material cut-off grade of 0.14 g/t AuEq, heap leach dump/pad material ...

WHITEHORSE — A court-appointed receiver plans to start sifting for gold in cyanide-laced water stored at the Eagle Gold Mine in Yukon. The Yukon government says proceeds will be used to help pay ...

The court-appointed receiver of a Yukon gold mine that suffered a catastrophic heap-leach facility failure last year says it ...

The company responsible for the Eagle Gold mine in central Yukon has begun recovering gold from the site to help pay for remediation. PricewaterhouseCoopers says it's collecting gold from cyanide ...

Aurion Resources Ltd. logo (CNW Group/Aurion Resources Ltd.) 93.6-96.1% gold recovery from leaching test on Kaaresselkä samples. 94.2-99.9% gold recovery from leaching test on Aamurusko samples ...