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 ...

VANCOUVER, B.C, Oct. 23, 2023 /PRNewswire/ -- Gold Port Corporation (CSE: GPO) (OTCQB: GPOTF) (the "Company") is pleased to announce that leach test work is underway using a new and innovative ...

While cyanide in mining is nothing new, using heap leaching to process gold didn't come along until the 1970s, McCullough said, when the first such mine was opened in Nevada. The process opened up the ...

A preliminary metallurgical study at Regnault was initiated in July 2022 with the completion of drill hole 22RDD149 (29.20m at 16.61 g/t Au including 9.85m at 44.89 g/t Au*). The objective was to ...

To assist mining companies in managing and recovering cyanide, engineering consultancy AZMET Technology & Projects developed the AZMET cyanide recovery process (AZ-CRP) to provide an alternative to ...

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 ...

PERTH (miningweekly.com) – The Commonwealth Scientific and Industrial Research Organisation (CSIRO) has licensed Perth-based Clean Mining to sell and distribute a new cyanide-free gold processing ...

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 ...

Many people in Summit County think the Board of County Commissioners should outright ban open pit, heap leach, cyanide mining – not that any is taking place or is in the planning stages. Others wonder ...