What's Happening?
Anglo American is progressing with its SandLix heap leach innovation, a novel process aimed at improving copper recovery from low-grade ores. The technology involves engineering the particle size of the ore to create a highly permeable 'sand' for heap leaching, which allows chemicals to flow more easily and optimizes leach reagent consumption. The process is less energy and water-intensive compared to conventional methods like flotation. A large pilot column is operational at Anglo American's Technical Solutions facility in Johannesburg, with South Africa's ProProcess involved in its fabrication. The SandLix process is part of Anglo's FutureSmart Mining program and has shown promising results, achieving more than 85% recovery rates within 250 days at pilot scale.
Why It's Important?
The SandLix heap leach innovation represents a significant advancement in copper mining technology, potentially reducing the cut-off grade of copper processes by up to 20%. This could lead to increased resource utilization by economically processing low-grade ores, which are typically considered uneconomical. The technology also promises to reduce the environmental impact of mining by lowering water and energy consumption and minimizing wet tailings. This innovation could be crucial for the mining industry as it seeks sustainable methods to meet the growing demand for copper, a key component in various industries, including electronics and renewable energy.
What's Next?
Anglo American plans to continue scaling up the SandLix technology, with ongoing deployment studies and fieldwork, including a prototype heap at the El Soldado copper mine in Chile. The company aims to refine the process further to enhance recovery rates and expand its application to other metals. As the technology progresses, it may attract interest from other mining companies looking to adopt more sustainable practices. Stakeholders, including environmental groups and industry leaders, will likely monitor the development closely, given its potential to transform copper mining operations.
Beyond the Headlines
The SandLix innovation could have broader implications for the mining industry, potentially setting a new standard for sustainable practices. By reducing reliance on traditional, more polluting methods, the technology aligns with global efforts to minimize environmental impact and promote responsible resource extraction. Additionally, the successful implementation of SandLix could encourage further investment in research and development of similar technologies, fostering innovation in the sector.
