Mining Technology on MSN

Bioleachers are sitting on a copper cache: why is uptake slow?

Bioleaching unlocks revenue from low-grade ores, but the cost-effective copper extraction process is struggling to get off ...
Nasdaq

Americas Gold and Silver Achieves Breakthrough With 99%+ Antimony Extraction From Its Copper Concentrate, Supporting Potential Primary Production in the United States

These assay results indicate an antimony-to-copper ratio in the tetrahedrite ore that is approximately 0.64-to-1 (versus 0.69-to-1 reflected in the above historical results). Antimony and copper is ...
Business Wire

Arizona Sonoran Reports Final Extraction Rates from Phase 1 of Nuton™ Technologies on the Cactus Sulphides and Expands the Program

CASA GRANDE, Ariz. & TORONTO--(BUSINESS WIRE)--Arizona Sonoran Copper Company Inc. (TSX:ASCU | OTCQX:ASCUF) (“ASCU” or the “Company”) an emerging US-based copper developer and near-term producer, ...
Mother Jones

We Need Copper, and These New Methods Could Make Refining It a Lot Cleaner

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. At a laboratory in Newark, New Jersey, a gray liquid swirls vigorously inside a ...
Nasdaq

Chilean Cobalt Corp. and Ecobiome Metals, LLC Sign Agreement for Strategic Partnership for Sustainable Cobalt and Copper Extraction

BERWYN, PA / ACCESSWIRE / February 14, 2024 / Chilean Cobalt Corp. (OTCQB:COBA) ("C3" or the "Company"), a US-based and US-listed critical minerals exploration and development company focused on the ...
Nature

Chalcopyrite Leaching and Copper Recovery Processes

Chalcopyrite leaching processes are at the forefront of hydrometallurgical techniques for copper extraction. The dissolution of chalcopyrite, a primary copper–iron sulphide mineral, involves intricate ...
insider.si.edu

The Hunt and Douglas process for extracting copper from its ores : with an appendix including notes on the treatment of silver and gold ores

"Copies of this ... pamphlet may be had by addressing J. Oscar Stewart ... For further information ... address James Douglas ... or T. Sterry Hunt" - p. 39. siris_sil_630058 ...
MIT Technology Review

This startup wants to clean up the copper industry

Still Bright hopes its chemical process could help replace polluting copper smelters. Demand for copper is surging, as is pollution from its dirty production processes. The founders of one startup, ...
Seeking Alpha

Canadian North Resources Inc. Reports Extraction Rates of 99% Nickel, 98% Cobalt and 90.6% Copper in the Second Set of Bioleaching Tests for the Ferguson Lake Project in Canada

The high metal extraction rates at low temperatures indicate a potential metallurgical process with low-energy consumption for the Ferguson Lake project. It is noted that the mineralogy of the massive ...