Geomechanics.io

  • Free Tools
Sign UpLog In

Geomechanics.io

Geomechanics, Simplified.

© 2025 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy
    Projects
    Product

    Nyrstar’s Port Pirie antimony pilot: flowsheet and retrofit notes for engineers

    November 20, 2025|

    Reviewed by Joe Ashwell

    Nyrstar’s Port Pirie antimony pilot: flowsheet and retrofit notes for engineers

    First reported on Australian Mining

    30 Second Briefing

    Nyrstar has produced its first antimony metal from a pilot plant at the Port Pirie smelter in South Australia, marking Australia’s initial domestic antimony casting from a multi-metal facility. The pilot uses existing lead–zinc smelting infrastructure to process antimony-bearing feed, aiming to validate flowsheet performance and metal quality before any scale-up. For process and project engineers, the move signals potential future integration of antimony circuits into established base metal plants, reducing reliance on imported antimony trioxide and metal.

    Technical Brief

    • For other polymetallic smelters, the approach suggests a retrofit pathway to add critical metal circuits.

    Our Take

    Nyrstar’s move into antimony at Port Pirie comes as the company also features in our coverage of Rio Tinto’s planned 40% output cut at the Yarwun alumina refinery, signalling that Trafigura-linked Nyrstar is increasingly central to Australian non-ferrous supply chains rather than just a niche smelter operator.

    Antimony appears only sparsely in our Mining coverage compared with bulk commodities, so an Australia-based source at Port Pirie could become strategically important for downstream users seeking to diversify away from traditional supply centres in Asia and the CIS.

    Locating antimony production in South Australia, where permitting and industrial infrastructure are relatively mature, likely reduces geopolitical and logistics risk for defence and energy-storage applications that depend on secure antimony supply.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

    Related Articles

    Equinox sells Brazilian operations to CMOC: portfolio and capex shift for mine planners
    Mining
    about 8 hours ago

    Equinox sells Brazilian operations to CMOC: portfolio and capex shift for mine planners

    Equinox Gold has agreed to sell its entire Brazilian portfolio — the Aurizona and RDM mines plus the Bahia complex (Fazenda and Santa Luz) — to China’s CMOC Group for over US$1 billion, including US$900 million cash on closing and up to US$115 million in contingent payments tied to production. The divested assets were guided to produce 250,000–270,000 oz. of gold in 2025, while Equinox’s refocused portfolio will centre on the Greenstone (220,000–260,000 oz.), Valentine (175,000–200,000 oz. at full run-rate) and Mesquite (85,000–95,000 oz.) operations. Proceeds will be used to retire US$800 million of debt, cutting interest costs and freeing capital for expansions at Valentine, Castle Mountain and Los Filos, with group output targeted at 700,000–800,000 oz. next year.

    Silicon Ridge critical minerals in Utah: grade, flowsheet and capex notes for engineers
    Mining
    about 13 hours ago

    Silicon Ridge critical minerals in Utah: grade, flowsheet and capex notes for engineers

    Ionic Mineral Technologies reports its Silicon Ridge project in Utah is a halloysite-hosted ion-adsorption clay system grading about 2,700 ppm (0.27%) combined rare earths and critical metals from 106 boreholes over 10,000 m and 35 trenches across 650 acres, exceeding typical Chinese IAC grades of 500–2,000 ppm. The confirmed mineralisation currently covers only 11% of the resource area to 100 ft depth, with existing mining permits and a 74,000 ft² Provo processing plant enabling rapid start-up. Ionic MT plans a vertically integrated flowsheet producing three co-product streams—critical minerals (including gallium, germanium, scandium, lithium and tungsten), high-purity alumina and nano-silicon—with a preliminary economic assessment due in H1 2026.

    Metso Geminex™ digital twins: control and reliability insights for plant engineers
    Mining
    1 day ago

    Metso Geminex™ digital twins: control and reliability insights for plant engineers

    Metso is promoting its Geminex™ digital twin platform as a way to move mineral processing plant control beyond traditional DCS screens towards predictive and proactive maintenance. Geminex™ integrates real-time sensor data with dynamic process models of grinding, flotation and filtration circuits to simulate plant behaviour, test “what‑if” scenarios and optimise setpoints before implementation. For operators, this signals deeper use of virtual commissioning, remote performance tuning and model-based failure prediction across comminution and concentrator lines.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    Construction

    Quality control software for construction companies with material testing, batch tracking, and compliance management.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.