Independent metallurgical testing confirmed that the company’s flowsheet can deliver an intermediate product ranging from 99.996% to 99.997% aluminium oxide.
The results have exceeded FYI’s target grade of 99.99%, the required grade for 4N standard alumina products, and leave room for potential expansion to higher-grade 5N products.
Verification was undertaken by Metallurgy Pty Ltd from test work completed by Independent Metallurgical Operations Pty Ltd.
FYI managing director Roland Hill said the verification of greater than 99.99% HPA was very gratifying from a project development perspective.
Hill said: “These excellent results clearly and independently demonstrate that we are on the right path to proving a proprietary HPA flowsheet that supports realisation of a world-class commercial strategic commodity refinery.
“Furthermore, it gives us confidence that additional updates to the HPA purity is possible.”
FYI produced HPA, which now exceeds 99.99% purity
FYI’s goal for the certified test work was to independently confirm the quality of the final alumina product that it intends to produce commercially under its HPA strategy.
The certification reduces product uncertainty and helps to ensure quality control and assurance in providing a consistent and reliable product to the market.
FYI announced last month it had expedited its mining trade-off study to integrate it with other ongoing study components.
The study has so far identified several key advantages including: a mining schedule of around 240,000 tonnes of ore per year; multiple operating pits for selective mining; and infrastructure and scheduling to support a long mine life.
The mining study will be progressed alongside other components of the prefeasibility study, ensuring the overall integration of the economic review is detailed, robust and consistent for Cadoux’s operations.
FYI’s HPA strategy is to mine and beneficiate kaolin on-site and transport the beneficiated aluminous clay to Kwinana for refining, before being exported to expanding tech and battery-related markets.