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 ...

CJK Milling plans to use flotation method to extract gold from waste rock at Leadville Mill. Permit amendment submitted for approval.

Researchers at University of New South Wales have reported details about a novel sieving-aids technology that improves the separation of metal fragments from other components when recycling ...

Ore samples from the company’s WA projects will be supplied to the laboratory for preliminary evaluation and research purposes. Mount Ridley Mines (ASX:MRD) expects this work to focus on early stage ...

CJK Milling Company Selects Extrakt Process Solution’s TNS™ and its Non-Cyanide Leach Technology to Recover Gold and Silver for Its Remediation Operation in Leadville, Colorado CJK Milling Company, ...