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    SiTration electro-extraction with BHP: retrofit and tailings options for process engineers

    July 1, 2026|

    Reviewed by Tom Sullivan

    First reported on International Mining – News

    30 Second Briefing

    SiTration has completed a five‑week prototype trial with BHP Invent and Copper South Australia, applying its patented electro‑extraction process to local copper ore waste streams to recover both copper and gold. The campaign, run on site-specific tailings and low-grade material, produced bullion‑grade gold directly from solution, validating selective metal recovery without conventional smelting. For process engineers, the work points to potential retrofit options in existing hydromet and tailings circuits to monetise waste streams and reduce reagent‑intensive steps.

    Technical Brief

    • Test work targeted local copper waste streams rather than primary ore feedstocks.

    Our Take

    BHP Invent’s parallel MoUs with China ENFI and BGRIMM on mineral processing suggest that, if SiTration’s copper electro-extraction in South Australia scales, it could slot into a broader BHP pipeline of alternative processing flowsheets rather than remain a standalone niche trial.

    SiTration’s presence both in this BHP trial and in prior coverage linked to record copper prices indicates that technology-led recovery improvements are being watched closely as a hedge against supply tightness in copper, especially for Australian projects competing with higher-cost Latin American output.

    Within our 1205 Mining stories, copper appears frequently alongside sustainability-tagged items, so a low-cost electro-extraction route in South Australia is likely to be evaluated not just on unit cost but on its potential to displace conventional smelting steps in BHP’s decarbonisation planning.

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    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.

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