Background
Climate change solutions rely on clean energy, with electric vehicles playing a crucial role in reducing greenhouse gas emissions. However, the sustainable extraction of battery materials, particularly lithium, remains challenging. Traditional extraction methods from mineral ores and brine deposits require high amounts of acid and produce undesirable by-products, including CO2, which complicates purification and increases carbon footprints. Additionally, the fine particle size of lithium-containing clays complicates processing. Therefore, new methods are needed to efficiently extract lithium in sedimentary claystones while minimizing energy use, reagent consumption, and production costs.
Technology Overview
Researchers at the University of Nevada, Reno have developed an innovative method and system for concentrating lithium from claystone materials. This novel technology focuses on removing gangue compounds based on specific density differences. The method employs gravity concentration to upgrade lithium by rejecting gangue minerals, thereby optimizing downstream extraction processes. This approach not only enhances the efficiency of lithium extraction but also addresses the environmental concerns associated with traditional extraction methods. The result is significant calcite removal, with optimum conditions dependent on the type of claystone, achieving up to 80% calcium rejection.
By reducing the reliance on acidification and minimizing the production of CO2, this technology offers a more sustainable solution for lithium extraction, aligning with the goals of reducing the carbon footprint and supporting the green energy transition.
Benefits
- Efficiency: Effectively removes calcium from sedimentary claystones with potential for improved separation efficiency.
- Scalability: Adapts to various types of lithium-containing materials.
- Cost Reduction: Lowers costs by reducing acid use and energy consumption in downstream processes.
- Environmental Compliance: Minimizes carbon footprint and acid use, enhancing sustainability.
Applications
- Mining Companies: Efficient extraction processes can be integrated into existing operations to reduce costs and environmental impact, making lithium mining more sustainable and profitable.
Opportunity
This technology is available for licensing. The University of Nevada, Reno is seeking parties interested in collaborating to further develop, evaluate, or commercialize this technology.
