| Company | Uranium One Inc. |
| Date | 2014 |
| Commodities | Uranium |
Executive Summary
This technical report details the recovery methods and plant performance for the Zarechnoye Uranium Mine operated by Uranium One Inc. The facility utilizes a conventional leach recovery plant employing ion exchange technology to extract uranium from pregnant solution. The process involves absorption in up-flow tanks, stripping with ammonium nitrate, and precipitation using caustic soda to produce yellowcake.
Plant performance data from 2007 to 2013 indicates a steady increase in production, reaching 930 tonnes of uranium in 2013. The current uranium recovery rate is approximately 94.5%, slightly below the planned 97%, with barren solution grades stabilizing at 2 mg/L U. The design capacity is 1,000 tonnes per annum, which the mine reached in 2011.
The final product is shipped to refineries for upgrading to U3O8. The plant is maintained in a clean and efficient manner, though open-air solution ponds present risks regarding dust accumulation and evaporation. Production numbers are currently estimated based on manual assay inputs.
Reports
Website: https://www.uranium1.com/about-us/
Report Date: 2014
Region:
Project Status:
Commodity: Uranium
Throughput:
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.
Zarechnoye Uranium Mine — 2012 Technical Report
Zarechnoye Uranium Mine — 2012 Technical Report
| Company | Uranium One Inc. |
| Date | 2012-02-27 |
| Region | Kazakhstan |
| Commodities | Uranium |
Executive Summary
This section of the NI 43-101 Technical Report details the recovery methods and plant operations for the Zarechnoye Uranium Mine. The facility utilizes a conventional leach recovery plant design, employing ion exchange technology to extract uranium from pregnant solution. Key equipment includes SNK-3m pressure sorption columns and Amberlite IRA-910 Cl ionexchange resin. The process involves stripping uranium from the resin using ammonium nitrate, followed by precipitation with caustic soda to produce yellowcake.
Plant performance data from 2007 to 2011 indicates a recovery rate of approximately 94%, slightly below the planned 96% to 97%. The barren solution grade has improved over time, stabilizing at 2 mg/L U as of October 2012. The plant is described as orderly and clean, maintained by Zarechnoye technical employees using an in-house control system.
Production data shows a total of 2,145 tonnes of Uranium produced from 2007 through September 2011. While the design capacity is 1,000 tonnes per year, the report’s economic analysis uses a reduced annual production forecast of 860 tonnes U per year due to concerns about overstated management forecasts. The final product is shipped as yellowcake with 20% to 25% moisture content.
Reports
Website: https://www.uranium1.com/about-us/
Report Date: 2012-02-27
Region: Russia
Project Status:
Commodity: Uranium
Throughput:
Mine Life:
Mine Type:
Ore type:
