This technical report describes the mineral processing design and historical metallurgical testwork proposed for the Roca Honda uranium project in McKinley County, New Mexico.
Report context
This technical report on the Roca Honda Project, located in McKinley County, New Mexico, USA, was prepared by SLR International Corporation for Energy Fuels Inc. The report carries an effective date of December 31, 2021, and a signature date of February 22, 2022 (SLR Project No: 138.02544.00006).
Processing route
Introduction
The mineral processing and metallurgical testing section of the report provides information on the mineralized sand zones and historical metallurgical testing, followed by conclusions and an opinion of adequacy (Section 13.0). The recovery methods section describes a proposed processing route that includes ore receiving, grinding, leaching, counter current decantation, solvent extraction, and precipitation, drying and packaging (Section 17.0).
Mineralized Sand Zones
Section 13.2 addresses mineralized sand zones at the project.
Historical Metallurgical Testing
Historical metallurgical testing is described in Section 13.3 of the report.
Proposed Recovery Methods
The proposed recovery methods are detailed in Section 17.0. Ore receiving is addressed in Section 17.2. Grinding is described in Section 17.3. Leaching is covered in Section 17.4. Counter current decantation is described in Section 17.5. Solvent extraction is described in Section 17.6. Precipitation, drying and packaging is described in Section 17.7. Mill upgrades are addressed in Section 17.8. Process design criteria are presented in Section 17.9.
Key reported parameters
| Parameter | Value / Description | Basis |
|---|---|---|
| Report date | Effective December 31, 2021; Signature February 22, 2022 | Technical report |
| Project location | McKinley County, New Mexico, USA | Section 4.0 |
| Processing testwork | Historical metallurgical testing conducted | Section 13.3 |
| Proposed process steps | Ore receiving, grinding, leaching, counter current decantation, solvent extraction, precipitation, drying and packaging | Section 17.0 proposed design |
| Mill upgrades | Addressed in report | Section 17.8 |
Project website: https://www.energyfuels.com/roca-honda-project/
Technical qualifications
No mineral reserves are estimated in this report (Section 15.0). The mineral processing and metallurgical testing section relies on historical metallurgical testing data (Section 13.3) rather than new testwork. The processing route as described in Section 17.0 represents a proposed design, not actual operating data from a currently operating mill at this project. Process design criteria are presented in Section 17.9 without detailed numerical values specified in the available excerpt.
Source: Technical Report on the Roca Honda Project, McKinley County, New Mexico, USA, prepared by SLR International Corporation for Energy Fuels Inc., effective December 31, 2021.
