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Mining industry

Revolutionary Gold Mining Technology to Enhance Recovery and Sustainability

Strategic Insights

— 1 min read

In a significant breakthrough, Commonwealth Scientific and Industrial Research Organisation (CSIRO) scientists have developed a technology that enhances gold recovery and sustainability by recycling toxic cyanide, significantly reducing environmental risks and costs associated with gold processing. This innovation has crucial implications for the gold mining industry, particularly in Australia, the second-largest global producer of gold. The new technology has the potential to transform the industry, making it more profitable and environmentally friendly.

Key Takeaways:

  • CSIRO scientists have developed a patented technology, Sustainable Gold Cyanidation Technology, that improves gold recovery while recycling toxic cyanide, delivering both economic gains and environmental benefits.
  • The technology surpasses the commonly practiced cyanide destruction technology and is now ready for pilot-scale demonstration in the field.
  • The process enables the recovery of cyanide and other toxic compounds, some base metals, and valuable soluble gold that typically remains unrecovered in cyanidation tailings, reducing environmental risks and costs.
  • The technology can also replace toxic mercury used by artisanal and small gold miners, making it a valuable innovation for the industry.
  • CSIRO has a track record of sustainable gold breakthroughs, including the production of Australia's first cyanide-free gold using a process called 'Going for Gold', which won the 2014 Australian Mining Prospect Award.
  • The Sustainable Gold Cyanidation Technology is now at Technology Readiness Level 4 and is set for scale-up, with CSIRO seeking industry partners for pilot projects and collaborations with gold producers, engineering firms, and suppliers.

Statistics:

  • Australia is the second-largest global producer of gold, accounting for nearly 300 tonnes of gold in 2024, worth about $34 billion AUD.
  • The nation's gold earnings are forecast to reach $60 billion AUD in both 2025-26 and 2026-27, making gold one of Australia's top exports, rivaling coal and iron ore.
  • The gold mining industry reduces environmental risks by destroying residual cyanide in the process tailings before discharge to tailings storage facilities.
  • The Sustainable Gold Cyanidation Technology can deliver greater economic and environmental benefits beyond what is possible with current cyanide recovery and recycling technologies.

Sources:

  • Commonwealth Scientific and Industrial Research Organisation (CSIRO)
  • "CSIRO Scientists to Change the Gold Mining Industry with New Technology" (CSIRO press release, 16 October 2025)
  • Breuer, P., & Dai, X. (2025). Sustainable Gold Cyanidation Technology. CSIRO Patented Technology.

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