Low costs27 Jan 2026 07:13
From today’s RNS
“ Recently, atmospheric sulphuric acid leaching concept has shown promising results, requiring less acid, simpler equipment, and lower temperatures than previous methods. Testing at temperatures as low as 120 °C with residence times up to four hours suggests significant reductions in energy and acid use, though recoveries still need improvement. Further examinations are underway to test higher grade concentrates and to further optimise the leach conditions and recoveries. The team is particularly excited by this flowsheet option as it has the potential to simplify the extraction circuit and provide an opportunity for recycling and reuse of low-grade acid within the process flowsheet.”