In mining, cyanide spills can cause fish kills and other problems, most recently at a river in Ghana last week downstream from a gold mine. While cyanide in mining is nothing new, using heap leaching ...

LEADVILLE, Colo.--(BUSINESS WIRE)--CJK Milling Company, LLC (CJK) is excited to announce the elimination of cyanide in our mill extraction process. “We listened to the concerns of the Leadville ...

Scientists at Australia’s national science agency, CSIRO, have developed a new process designed to improve gold recovery and recycle toxic cyanide used in mining. The method, called ‘Sustainable Gold ...

SUMMIT COUNTY, Colorado ” Even though the Colorado Supreme Court last week rejected Summit County’s ban on cyanide-based gold mining, no one is expecting a rush of mining applications any time soon.

Gold miners are facing mounting pressure to improve recoveries and reduce processing risk, yet many still rely on methods ...

Extracting gold from ore is a poisonous business. The most common method is cyanide leaching, where cyanide salts in solution are used to suck the gold out from its ore. You get gold, but you also get ...

BRECKENRIDGE – The Summit Board of County Commissioners will consider regulating smoking in public places and cyanide heap leach mining at a public hearing beginning at 1:30 p.m. Monday at the Summit ...

The cyanide "leakage" that killed tons of fish in the Czech river Labe (Elbe) recently has re-focused public attention throughout central and Eastern Europe to the environmental and human dangers ...