Mining & Processing

How Uranium Is Mined and Processed

Uranium (U) is a energy mineral with global annual production of approximately 60,000 tonnes U, primarily from Kazakhstan and Namibia. Typical ore grades range from 0.03-20% U3O8 (varies enormously by deposit type).

Mining Methods

Uranium is extracted through the following methods, selected based on deposit type and geology:

• In-situ leach recovery (ISL/ISR)
• Open-pit mining
• Underground mining
• Byproduct of copper/gold mining

Ore Types and Mineralogy

The principal ore types and mineral sources for Uranium include:

• Uraninite/pitchblende - UO2
• Coffinite
• Carnotite
• Sandstone-hosted deposits

Processing and Beneficiation

Following extraction, Uranium ore undergoes the following processing stages:

1. Ion exchange/solvent extraction from leach solutions
2. Yellowcake precipitation
3. Conversion to UF6
4. Enrichment (gaseous diffusion/centrifuge)
5. Fuel fabrication

Major Mines and Production Centers

The following are key Uranium mining and processing operations worldwide:

Environmental and Regulatory Considerations

Mining and processing of Uranium must comply with environmental regulations governing water use, tailings management, emissions, and land rehabilitation. Increasingly stringent environmental standards are raising production costs but also driving innovation in cleaner extraction technologies. The social license to operate and community engagement have become critical factors in project development, particularly in Kazakhstan where 43% of global production is concentrated.