| Company | Marimaca Copper |
| Date | 2020 |
| Region | Chile |
| Commodities | Copper |
| Mine Type | Open Pit |
| Throughput | 5.4 – 9.0 Mt/y |
| Mine Life | 12 years |
| Annual Production | 40,000 t/y Cu |
| Status | Development |
Executive Summary
The Marimaca Project is a 12-year development-stage mining operation located in Chile, designed to produce Grade-A copper cathodes through a conventional salt acid leaching process. The project utilizes a comminution circuit followed by crushed mineralized material heap leaching and ROM leach facilities, coupled with Solvent Extraction (SX) and Electrowinning (EW) plants. The process relies on seawater-based solutions with sulphuric acid and salt addition to leach both oxide and sulphide copper mineralization.
The mine plan is divided into two phases. Phase 1 (Years 1-5) focuses on oxide mineralization with a processing capacity of 5.4 Mt/y, while Phase 2 (Years 6-12) expands to 9.0 Mt/y, incorporating a higher proportion of sulphide copper mineralization. The facility is designed for a nominal capacity of 40,000 t/y of copper cathodes, with total LOM production estimated at approximately 430 kt of cathodes. Recovery rates are projected at 79% for Phase 1 and 74% for Phase 2.
Water management is a critical component, utilizing a dedicated reverse osmosis plant for SX/EW requirements and recovering brine reject as process water. The process includes a three-stage crushing circuit, agglomeration drums, and a two-stage leaching cycle involving Intermediate Leach Solution (ILS) and raffinate. The project is currently in the PEA stage as of 2020.
Operational Details
Processing Methods
Reports
Website: https://marimaca.com/marimaca-copper-project-overview/
Report Date: 2020
Region: Chile
Project Status: Development
Commodity: Copper
Throughput: 5.4 – 9.0 Mt/y
Mine Life: 12 years
Mine Type: Open Pit
Ore type:
Technical report and processing history
The following archived source profiles have been consolidated here to preserve the project’s processing history and study context.
Technical Report for the Marimaca Copper Deposit
Technical Report for the Marimaca Copper Deposit
| Company | Coro Mining Corp NCL SpA |
| Mine | Marimaca |
| Date | Unknown |
| Region | Unknown |
| Commodities | Copper |
Executive Summary
This technical report covers the Marimaca Copper Deposit, presented by Coro Mining Corp NCL SpA. The document outlines the technical aspects of the project, specifically focusing on recovery methods and project infrastructure.
The primary recovery method identified for the Marimaca deposit involves heap leaching techniques. This process is designed to produce copper cathode through a Solvent Extraction and Electrowinning (SXEW) circuit. The report snippet provided covers Section 15 on Recovery Methods, along with references to Project Infrastructure and Adjacent Properties.
While specific operational metrics such as throughput and mine life are not detailed in this excerpt, the strategic focus remains on the efficient extraction of copper via heap leach methods. Further details regarding the project’s infrastructure and surrounding geological context are included in subsequent sections of the full technical report.
Entities
- entities/Marimaca_Mine
Website: https://www.listcorp.com/asx/mc2/marimaca-copper-corp/news/marimaca-announces-mod-feasibility-study-3232257.html
Report Date: Unknown
Region: Unknown
Project Status:
Commodity: Copper
Throughput:
Mine Life:
Mine Type:
Ore type:
