| Company | Energy Fuels Inc. |
| Date | July 2012 |
| Region | San Juan County, Utah |
| Commodities | Uranium, Vanadium |
| Throughput | 2,000 tpd (Design) |
| Status | Operating (Intermittent) |
Executive Summary
This NI 43-101 Technical Report outlines the recovery methods and operational details for the Daneros Mine Project, specifically focusing on the White Mesa Mill owned by Energy Fuels Inc. The mill is located six miles south of Blanding, Utah, approximately 65 road miles from the Daneros Mine. Originally constructed between 1979 and 1980, the facility was designed to treat 2,000 tons of ore per day but has operated at rates exceeding this design capacity.
The processing operation involves grinding run-of-mine ore to minus 28 mesh in a semi-autogenous grinding mill, followed by sulphuric acid leaching. Uranium and vanadium are recovered from the solution using separate solvent extraction processes. The uranium is precipitated as U3O8 concentrate, known as yellow cake, and packaged for transport. The mill has operated intermittently in campaigns to process ores from the Arizona Strip and the Colorado Plateau, producing approximately 30 million pounds of U3O8 and 33 million pounds of V2O5 since 1980.
Operational Details
The mill processes both Colorado Plateau ores and higher grade Arizona Strip ores, with throughput rates varying based on ore type. The basic process is a sulphuric acid leach with solvent extraction recovery. The facility has been modified over time to handle different ore grades and feed materials during intervals when mine production is low or nonexistent.
Reports
Website: https://www.isoenergy.ca/portfolio/us/daneros-mine/
Report Date: July 2012
Region: San Juan County, Utah
Project Status: Operating (Intermittent)
Commodity: Uranium, Vanadium
Throughput: 2,000 tpd (Design)
Mine Life:
Mine Type:
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.
Energy Fuels Inc. – The Henry Mountains Complex Uranium Property — 2012 Technical Report
Energy Fuels Inc. – The Henry Mountains Complex Uranium Property — 2012 Technical Report
| Company | Energy Fuels Inc. |
| Date | 2012-06-27 |
| Region | Southeastern Utah |
| Commodities | Uranium, Vanadium |
Executive Summary
The White Mesa Mill, located six miles south of Blanding in southeastern Utah, is a processing facility designed to treat 2,000 tons of ore per day. Construction began in June 1979 and was completed in May 1980 by EFNI. Since 1980, the mill has operated intermittently in campaigns to process ores from the Arizona Strip and the Colorado Plateau. It has been modified to handle higher grade ores from the Arizona Strip, though processing rates for these ores are typically lower than for Colorado Plateau ores.
The basic mill process involves a sulphuric acid leach with solvent extraction recovery of uranium and vanadium. Run-of-mine ore is ground to minus 28 mesh in a semi-autogenous grinding (SAG) mill. Leaching occurs in two stages: a pre-leach circuit using mechanically agitated tanks and a hot acid leach circuit with seven tanks maintained at 75°C. The leached pulp is washed and thickened in a countercurrent decantation (CCD) circuit before the pregnant solution undergoes solvent extraction.
Overall, the mill has produced approximately 30 million pounds of U3O8 and 33 million pounds of V2O5 since 1980. The final uranium product is precipitated using ammonia, dried, and packed into 55-gallon drums for shipment. The facility represents a key processing asset for Energy Fuels Inc. within the Colorado Plateau region.
Reports
Website: https://investors.energyfuels.com/2021-07-15-International-Consolidated-Uranium-Enters-the-U-S-Uranium-Sector-with-Transformational-Acquisition-and-Strategic-Alliance-with-Energy-Fuels
Report Date: 2012-06-27
Region: Southeastern Utah
Project Status:
Commodity: Uranium, Vanadium
Throughput:
Mine Life:
Mine Type:
Ore type:
