Lithium Universe Limited (ASX: LU7) has secured exclusive worldwide rights to a patented metal recovery technology developed by the University of Edinburgh’s School of Chemistry. The process, Gold Copper Diamide Extraction (GCDE), is designed to recover gold and copper from discarded electronic waste using a low-energy chemical method. The company said the licensing deal expands its activities beyond lithium development into precious metals recovery from end-of-life products.
LU7’s Precious Metals Recovery Division will incorporate gold and copper extraction from e-waste alongside other recovery initiatives. The company frames the move as part of a broader push for sustainable critical minerals recovery tied to clean-energy and technology supply chains.
E-waste volumes rise and recycling remains limited
The acquisition follows what LU7 describes as a shift in how governments and industries treat electronic waste. E-waste is characterized as the world’s fastest-growing hazardous waste stream, driven by increased consumption of smartphones, computers, batteries, servers and other digital devices. Global volumes are projected to reach nearly 93.5 million tonnes annually by 2030, up from around 62 million tonnes in 2022.
The source material states that only a small share of e-waste is currently recycled through formal systems that are environmentally controlled. The remainder is said to be disposed of in landfills or processed through informal operations involving toxic chemicals, open burning and unsafe extraction practices. Electronic waste is also described as containing high-value metals including gold, copper, silver, nickel, palladium and rare materials used in energy and technology systems.
GCDE uses two room-temperature stages for gold then copper
The licensed GCDE approach is presented as operating at room temperature using reusable organic compounds rather than high-temperature smelting. The process is described as running in two stages: selective gold recovery followed by copper extraction. LU7 says the method is intended to recover both metals from dissolved feedstock derived from shredded electronic waste.
In stage one, printed circuit boards and other e-waste materials are shredded and processed into a concentrated feedstock. The material is dissolved in a chloride-based acidic solution to convert metals into soluble compounds, after which a diamide molecule is added to selectively bind gold ions. The gold compound precipitates as a visible yellow solid that can be separated and refined into high-purity gold.
The source states that the diamide reagent can be recovered and reused multiple times, with the aim of reducing operating costs and minimizing chemical waste. It also says the approach avoids cyanide, mercury and solvent-heavy extraction systems commonly associated with precious metals recovery.
After gold removal, stage two addresses remaining dissolved copper and other metals in solution. A compound identified as pyrazine-2,3-dicarboxylic acid (PDCA) is introduced to selectively capture copper ions. The resulting copper-rich complex is then processed further to produce purified copper while maintaining low contamination levels.
GCDE described with room-temperature operation and reduced hazardous inputs
The technology is presented as addressing economic and environmental challenges faced by recycling operations. Among the advantages listed are room-temperature processing without furnace requirements and the absence of cyanide, mercury or highly toxic solvents. The source also cites reusable chemical reagents aimed at lowering operating costs.
Other stated benefits include high-purity recovery of both gold and copper, along with potential for modular or small-scale deployment. LU7 also references lower energy intensity compared with conventional smelting approaches used for metal recovery.
LU7 expands beyond lithium with merchant refineries in Québec and Texas
While LU7 remains focused on battery-grade lithium infrastructure in North America, it is also positioning itself as a clean-energy materials recovery business. Its lithium strategy includes planned merchant lithium carbonate refineries in Québec and Texas intended to serve future battery supply chains linked to electric vehicles and renewable energy storage.
The company’s Precious Metals Recovery Division adds a second growth pillar focused on extracting valuable materials from end-of-life clean-energy products and electronic devices. LU7 already holds technology aimed at recovering silver from decommissioned solar panels through partnerships involving advanced extraction methods developed with Australian research institutions.
With GCDE now included, LU7 says its capabilities extend into gold and copper recovery from e-waste. The source links these activities to a broader trend toward circular resource systems where critical materials are recovered, reused and reintegrated into industrial supply chains.
Critical minerals demand supports recycling investment
The source material attributes increased recycling interest to rising demand for strategic minerals driven by electric vehicles, renewable energy, battery storage and advanced digital infrastructure. It states that demand for metals including lithium, copper, nickel, cobalt, silver and rare earth elements is expected to increase over coming decades, creating pressure on mining supply chains.
It also says geopolitical tensions and concerns over raw material security are encouraging Western economies to invest more heavily in domestic recycling capacity. E-waste recovery is described as a way to reduce dependence on imported raw materials while lowering the environmental footprint associated with traditional mining operations.
For copper specifically, analysts cited in the source expect long-term demand growth due to roles in electrification, EV charging systems, renewable energy grids and data infrastructure. Gold is described as valuable in electronics because of conductivity, corrosion resistance and reliability in circuit components.
Urban mining framed as an industrial-scale metal source
The acquisition is presented as reflecting urban mining’s shift toward an industrial sector rather than a niche activity. Discarded electronics are described as containing metal concentrations that can exceed those found in some traditional ore deposits. In some cases, printed circuit boards are said to contain substantially higher gold concentrations than mined gold ore.
The source ties this to tightening environmental standards globally and government priorities for circular economy policies. It states that companies able to recover critical materials efficiently from waste streams may become important participants in the resource economy’s future.
For LU7, the University of Edinburgh partnership provides access to proprietary GCDE technology that could scale into commercial operations serving global e-waste markets. The deal is also described as part of a broader transformation across mining and recycling sectors toward recovering valuable materials already circulating within the global economy.
