AUSTRALIAN METS
minimise energy consumption while gently heating the product to protect the sensitive rare earth solutions.
The modular design significantly reduces on-site construction risks, streamlines installation timelines and enhances quality control by prefabricating components in a controlled off-site environment. This approach, JordProxa states, minimises disruption at the refinery site and ensures a rapid deployment of these critical process plant systems.
The CO₂ capture plant, meanwhile, is designed to recover carbon dioxide from boiler off-gas using an aqua ammonia solution, producing a controlled ammonium carbonate / bicarbonate mixture at the desired pH. This process is critical not only for meeting emission standards for ammonia but also for achieving precise CO₂ recovery, which plays a key role in downstream process chemistry, JordProxa says.
JordProxa’ s solution includes three gas processing columns: one for gas conditioning and primary cooling / polishing, and two for CO₂ absorption and final gas polishing. The system has been designed to minimise energy usage and reduce operating costs without compromising on recovery efficiency or environmental performance, it says.
While the large columns are supplied loose for on-site assembly, pumps, heat exchangers and ancillary systems are delivered in modular skids..
Accuracy out of Adelaide
Adelaide-headquartered Scantech International says it continues to build on its leading position in the minerals sector in the measurement of direct gold content in ore at several sites in Australia and Asia, presenting dynamic calibration results verifying measurement performance to the World Gold 2025 audience in Denver earlier this year.
Precisions of 0.25 g / t Au were achieved at two mines in New South Wales and Western Australia over 5 g / t ranges, while at a gold mine in Asia 0.12 g / t Au precisions were achieved on ore below 0.7 g / t Au.
GEOSCAN GOLD is, Scantech says, a high performance, Prompt Gamma Neutron Activation Analysis( PGNAA)- based elemental analyser and has been implemented at multiple sites by several of the world’ s leading gold producers.
Gold content measurement is used to verify the quality of received material and in accounting for metal recovery performance for mines, process plants and smelting operations, the company says.
Scantech says it has GEOSCAN GOLD installations imminent in the US, Chile, Ghana, Democratic Republic of the Congo and Europe to add to existing installations in
Australia, Laos, Peru and Canada.“ In other commodities, the high specification GEOSCAN-M continues to provide representative multi-elemental data every two minutes on primary crushed flows to help geologists reconcile ore grades for production, mining engineers to compare produced ore to mine schedules, and process operators to blend ores for improved consistency in plant feed quality to maximise metal recoveries and reduce plant upsets,” Scantech says.
At several copper, nickel and platinum sites, the analyser data is used for each 30 seconds of flow to control diverters to remove waste or lower grade parcels of as little as a few tonnes from the process plant feed to avoid unnecessary: processing of waste, generation of tailings, greenhouse gas emissions, energy consumption in milling, water consumption and flotation or leaching reagent use. Elements are used as proxies for process-affecting parameters such as ore hardness, mineralogy and clay content, especially when combined with Scantech’ s ReadiMoist TBM microwave moisture and SizeScan PSD sensors. The data is used in feed-forward control to allow operators to adjust mill feed rates, control additive dosing and to optimise metal recoveries.
Elemental content has also been found to assist with waste type identification, such as acid-generating waste or high clay containing material, which can affect the recovery of clean waste for construction applications on remote sites or determine the preferred disposal process.
Enter MagnaTerra Technologies
In a similar space, NextOre Ltd and MRead Ltd recently completed a merger and an A $ 11 million capital raise, in the process forming a new Australian deep-tech company called MagnaTerra Technologies Ltd.
MagnaTerra combines more than two decades of sovereign innovation in magnetic resonance( MR) sensing, a rapid, accurate and safe detection technology developed by CSIRO to detect minerals, explosives and narcotics at a molecular level, the company says.
The capital raise will allow the company to continue developing sensors that enable improved processes in humanitarian demining, defence, critical minerals and border security markets, where global demand is intensifying. MagnaTerra will expand its detection capabilities for target explosives, critical minerals for bulk sorting and iron ore sensing applications.
MagnaTerra will continue to operate under established brands: NextOre for minerals and MRead for security, defence and humanitarian applications.
NextOre’ s systems are already operating in Chile, Zambia and the Philippines with customers including Lundin Mining, First Quantum Minerals and Newcrest( now Newmont). In addition to conveyor-based systems, the company has also developed solutions focused on truck bed, MR-based analysis for both surface and underground mines.
NextOre says:“ The platform helps copper miners offset the effects of declining ore grades and dramatically reduce energy, water and chemical use by rejecting waste rock close to the source.” It’ s now being adapted for lithium and iron ore, with future applications across minerals such as cobalt, antimony and bismuth.
VIPER adaptations
NextOre’ s magnetic resonance-based sorting solutions will now be part of MagnaTerra Technologies
The extraction of critical minerals essential to manufacture the clean energy future comes with significant challenges; challenges Jord International is taking on.
Partnering with the University of Newcastle Chief Investigator, Dr Peter
14 International Mining | OCTOBER 2025