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Excelsior Mining Announces Positive Initial Wellfield Results at the Gunnison Copper Project

Mining News - Published on Tue, 14 Jan 2020

Image Source: excelsiormining.com
Excelsior Mining Corp has provided an update on operations at the Gunnison Copper Project in southern Arizona. Initial copper recovery grades are exceeding feasibility study expectations. Pregnant leach solution grade is currently measuring 0.15 grams per liter copper in the primary recovery pond; this milestone is ahead of schedule and keeps Excelsior on pace for copper production this quarter. President and CEO Stephen Twyerould said "We have the newest, most orderly, and technologically advanced in-situ recovery wellfield on the planet, and to date, it is functioning better than anticipated. We look forward to updating the market on our progress as we complete the transition to producer status."

Acid injection is being steadily increased and is currently at approximately 50% of the full production rate. The 41 injection and recovery wells that comprise the production wellfield will continue to circulate mining solutions (over a cubic area of approximately 400ft x 400ft x 700ft) in a closed-loop system until the concentration of copper held in solution warrants processing. Once this grade is achieved, mining solutions will then be treated through the Johnson Camp processing facilities to extract copper and produce LME grade copper cathode sheets. First copper cathode sales are expected in Q1, 2020.

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Posted By : Rabi Wangkhem on Tue, 14 Jan 2020
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