Highlights
- Australia’s potential in critical minerals is threatened by insufficient industrial processing capacity and global competition.
- Breakthrough adsorption technologies offer hope for the sustainable recovery of minerals from waste streams.
- Urgent innovation and investment are needed to transform mining waste into valuable resources and maintain a competitive edge.
A major new review published in Minerals Engineering (opens in a new tab) by Abdul Hannan Asif and colleagues at the University of Western Australia spotlights Australia’s race to build a resilient lithium and rare earth element (REE) value chain. Leveraging breakthroughs in functionalized adsorbents, the authors propose utilizing mining waste and e-waste as sources of critical minerals, aligning with circular economy principles. Yet behind the optimism lies a stark warning: Australia’s current industrial capacity, especially for rare earths processing, remains dangerously insufficient to meet surging global demand amid escalating geopolitical tensions.
The report hails functionalized adsorption technologies as a promising path for sustainable recovery, but acknowledges steep obstacles: low adsorption capacities, poor selectivity, harsh regeneration cycles, and fragile scale-up economics. While lithium refining is advancing, with projects like Kwinana and Kemerton boosting Australia’s lithium hydroxide production, rare earth refining still lags behind. Most REE concentrates are still exported unprocessed, with only isolated domestic projects like Arafura’s Nolans and Hastings’ Yangibana beginning to change the picture. Australia’s ambition to lead in critical minerals risks being throttled by slow downstream build-out, fragile project economics, and stiff Chinese competition.
In a striking pivot, the authors urge industrial policymakers to move beyond just mining and prioritize aggressive investment in waste-to-value technologies, including recovery from tailings and e-waste. However, the report admits that without rapid material science innovation—specifically in adsorbent stability, selectivity, and scalability—the promise of a fully circular critical minerals economy will remain out of reach. Meanwhile, the looming waste burden from lithium and rare earth mining is projected to increase significantly, posing major environmental and economic risks unless transformative processing solutions are implemented.
This comprehensive review sends a blunt message: Australia’s mineral bounty offers immense opportunity, but half-measures and slow innovation could surrender that advantage. Scaling next-generation adsorption and circular economy technologies is not optional—it’s critical if Australia is serious about competing in a world racing toward decarbonization, resource nationalism, and supply chain independence.
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