| Company | Critical Elements Lithium Corporation |
| Date | 2023 |
| Region | Quebec, Canada |
| Commodities | Lithium, Tantalum |
| Mine Type | Open Pit |
| Throughput | 4,900 tpd |
| Status | Development |
Executive Summary
The Rose Lithium Tantalum Project is a development-stage mining operation designed to process 4,900 tonnes per day of lithium and tantalum ore. The project is located in Quebec, Canada, as indicated by the Hydro-Québec Grid connection. The processing plant is designed to produce a spodumene concentrate grading 6.16% Li2O and a tantalum concentrate grading 2% Ta2O5. The facility utilizes a combination of crushing, grinding, magnetic separation, and flotation to recover critical elements from the ore.
The process flow begins with primary jaw crushing followed by secondary and tertiary cone crushing to reduce ore size to 13 mm. The crushed ore is then ground in a ball mill closed circuit with cyclones. Magnetic separation is employed to recover tantalite minerals, while flotation circuits are used to separate spodumene and mica. The spodumene concentrate is dewatered using pressure filters to achieve a moisture level below 5% for shipping.
The plant is designed for 90% concentrator availability and 50% crushing availability. Total electrical power demand is estimated at 8.21 MW. The project is currently in the feed study phase, with plans to optimize the layout and engineering in future phases. Tailings will be dry stacked in a waste rock facility.
Processing Methods
- Crushing: Primary Jaw Crusher, Secondary/Tertiary Cone Crushers
- Milling: Ball Mill (5.2m x 8.8m)
- Flotation: Spodumene (Rougher/Scavenger/Cleaner), Mica (Rougher/Cleaner)
- Leaching: None
- Magnetic Separation: Wet Magnetic Separation (Rougher/Scavenger)
- Dewatering: Pressure Filter (Concentrate), Belt Filter (Tailings)
Website: https://www.cecorp.ca/en/
Report Date: 2023
Region: Quebec, Canada
Project Status: Development
Commodity: Lithium, Tantalum
Throughput: 4,900 tpd
Mine Life:
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.
Rose Lithium-Tantalum Project — 2017 Technical Report
Rose Lithium-Tantalum Project — 2017 Technical Report
| Company | Critical Elements Lithium Corporation |
| Date | 2017 |
| Region | Quebec, Canada |
| Commodities | Lithium, Tantalum |
Executive Summary
This technical report section details the processing plant design for the Rose Lithium-Tantalum Project, developed by Critical Elements Lithium Corporation. The facility is designed to recover spodumene concentrate and tantalum concentrate from open-pit mined ore. The plant is engineered to operate continuously with a nominal throughput of 4,900 dry tonnes per day, utilizing a combination of crushing, grinding, magnetic separation, and flotation circuits to achieve target product grades.
The beneficiation process begins with primary and secondary crushing followed by grinding in a ball mill circuit. Tantalum recovery is achieved through wet magnetic separation, while spodumene is recovered via a multi-stage flotation circuit that includes rougher, scavenger, and cleaner stages. Mica flotation is also integrated to remove deleterious minerals prior to spodumene recovery. The plant design incorporates dewatering and drying steps to produce market-ready concentrates.
The spodumene plant is designed to produce a technical grade concentrate grading 6.0% Li2O or higher, with a chemical grade option of 5.5% Li2O. Tantalum concentrate is targeted at 2% Ta2O5, with potential for 20% Ta2O5 through additional gravity concentration. The facility utilizes hydroelectric power from the Hydro Québec Grid and includes comprehensive water recycling and tailings management systems for dry stacking.
Website: https://www.cecorp.ca/en/
Report Date: 2017
Region: Quebec, Canada
Project Status:
Commodity: Lithium, Tantalum
Throughput:
Mine Life:
Mine Type:
Ore type:
