The Denver Post

Plan to use cyanide to extract gold from Leadville mining waste has residents concerned

Getting your Trinity Audio player ready... LEADVILLE — Millions of tons of waste from decades-old mining operations sit in the hills east of town. The brown and orange piles of abandoned ore rise 30 ...
The Aspen Times

State joins mining association in lawsuit over cyanide process

SUMMIT COUNTY ” State officials have joined the Colorado Mining Association (CMA) in challenging Summit County’s popular mining regulations in court. The CMA, a powerful lobbying and trade group, sued ...

Clean-tech metallurgy for a market measured in billions of tonnes

Duane Nelson, President and CEO of RZOLV Technologies (TSXV: RZL), discusses a company at the forefront of a fundamental ...
Business Wire

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

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 ...
Hosted on MSN

Silver plating goes green: Phosphorus compounds replace toxic cyanide in new process

A research team has developed the world's first eco-friendly silver (Ag) plating technology using a phosphorus (P) compound as a key plating component. This breakthrough technology enables silver ...
Newswire

SILVER ONE REPORTS ON METALLURGICAL TEST RESULTS USING INNOVATIVE SEPARATION AND LEACHING TECHNOLOGY AT ITS CANDELARIA SILVER MINE, NEVADA

Gregory Crowe, President and CEO commented: "The impressive results from the initial testing using EPS' technology have encouraged Silver One to expand this testing to cover both leach pads and fresh ...