Gallium and germanium are critical materials used in advanced technologies but recovering them from domestic mining feedstocks is challenging because feedstock compositions can vary widely and contain diverse impurities. These materials can also be recovered from electronic waste, including fiber optics. The Oak Ridge National Laboratory (ORNL) technology provides a membrane-based solvent extraction approach for separating and recovering high-purity gallium and germanium from mining-derived and electronic waste feedstocks. The process is designed to support continuous operation and scalable deployment while reducing chemical use, waste generation, and processing costs compared with conventional separation approaches. The technology could strengthen domestic production and recovery of critical materials and reduce supply-chain vulnerabilities.
Description
ORNL has developed an approach for recovering gallium and germanium from mining and electronic waste feedstocks, including fiber optics, that combines feedstock preparation with a membrane-based solvent extraction process. The technology is designed to address the challenges associated with variable feedstock compositions and the presence of unwanted materials that can complicate conventional separation processes.
The membrane-based system selectively separates target materials using a specialized extraction configuration that enables continuous processing. Its compact, modular design supports process intensification and scalability while maintaining high extraction performance. The approach is intended to reduce the amount of chemical reagents required, limit waste generation, and avoid processing challenges such as emulsion formation that can occur with conventional solvent extraction.
Compared with traditional hydrometallurgical, pyrometallurgical, and solvent extraction methods, the technology has the potential to reduce operating and capital costs while enabling recovery of high-purity gallium and germanium from domestic mining resources and electronic waste streams.
Benefits
- Enables recovery of high-purity gallium and germanium from complex mining feedstocks
- Supports continuous and scalable processing
- Reduces chemical reagent requirements and waste generation
- Avoids emulsion formation associated with conventional solvent extraction
- Offers potential reductions in operating and capital costs
- Supports expanded domestic supply of critical materials
Applications and Industries
- Gallium and germanium recovery
- Critical mineral processing
- Mining and mineral processing operations
- Mine tailings and mining-derived feedstock processing
- Advanced materials supply chains
- Defense-related materials production
Contact
To learn more about this technology, email [email protected] or call 865-574-1051.
Contact
To learn more about this technology, email [email protected] or call 865-574-1051.