| Company | McEwen Mining |
| Date | 2018 |
| Region | Paroo Station, Australia |
| Commodities | Lead |
| Mine Type | Open Pit |
| Status | Operating |
Executive Summary
This NI 43-101 Technical Report details the metallurgical performance and recovery methods for the McEwen Mine, specifically focusing on the operational phase from 2013 to 2015 and the proposed Design Feasibility Study (DFS) testwork. Historical data indicates the mine operated as an open pit facility processing ore through the Paroo Station concentrator. Metallurgical performance during this period showed varying recovery rates, with 2014 achieving the highest throughput and recovery metrics. The report outlines a proposed Hydrometallurgical Facility designed to process lead concentrates using Methane Sulphonic Acid (MSA) leaching.
The report outlines a proposed Hydrometallurgical Facility designed to process lead concentrates using Methane Sulphonic Acid (MSA) leaching. Key modifications to the existing concentrator include the addition of a pebble crusher and column flotation to improve concentrate grades and filtration. The new flowsheet aims to produce a lead concentrate suitable for electrowinning, targeting high purity lead cathodes while managing impurities such as iron and arsenic through specific removal circuits. The ore mineralogy is predominantly lead carbonate (cerussite) with significant lead sulphate (anglesite) content.
Metallurgical Performance
Historical performance data from 2013 to 2015 demonstrates the operational baseline for the concentrator. In 2014, the mine milled approximately 1.44 million dry metric tonnes (dmt) with an average recovery of 79%. The proposed DFS testwork focuses on optimizing flotation kinetics and implementing a hydrometallurgical circuit to handle the specific mineralogy of the ore, particularly the encapsulation of anglesite within cerussite.
Reports
Website: https://mcewenmining.com/
Report Date: 2018
Region: Paroo Station, Australia
Project Status: Operating
Commodity: Lead
Throughput:
Mine Life:
Mine Type: Open Pit
Ore type:
