Lake Victoria Gold Identifies Preferred Pretreatment Method to Improve Gold Extraction at Imwelo Project
Lake Victoria Gold Ltd. has reported successful metallurgical test results for near-surface mineralization at its Imwelo Gold Project in Tanzania's Lake Victoria Goldfield. The preferred pretreatment method, involving attrition scrubbing followed by desliming, significantly improved gold extraction from as-received material (49.99%) to 84.54% within 24 hours under simulated plant conditions. This process also enhanced slurry settling and gravity recovery, with bottle-roll testing showing recoveries of up to 88.15%. The results support the advancement of this pretreatment method into further optimization stages. The test work was conducted by Nesch Mintech Tanzania Limited using material from Area C, which is expected to form a key component of early mining operations at Imwelo. Approximately 26% of gold in the ore resides in coarser particles (+300 µm), and gravity recovery improved significantly after pretreatment. These findings complement earlier metallurgical results on deeper transitional and fresh mineralization that showed recoveries up to approximately 97%. The project is now better positioned for process design as it moves toward execution. The announcement follows recent strong near-surface drilling results from Area C, including intersections with gold grades exceeding 28 g/t. These findings are intended to support mine planning and detailed processing strategies ahead of production.
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Topics: gold extraction mineral processing process optimization