Vanadiumcorp releases Lac Dore test results

Executive Summary

• Vanadiumcorp Resource Inc. released interim metallurgical results from bulk sample testing at its Lac Dore property, conducted by Impact Global Solutions Inc. (IGS).
• The testing successfully demonstrated the production of a vanadium-magnetite concentrate via conventional grinding and magnetic separation, followed by selective vanadium extraction using oxidative roasting and sulphuric acid leaching.
• Results support the company's strategy of developing a domestic, low-carbon vanadium supply chain for vanadium flow battery (VFB) electrolytes, with IGS recommending further optimization of the flowsheet.

Key Details

• Testing Scope: Conducted by Impact Global Solutions Inc. (IGS) on bulk samples from the Lac Dore vanadiferous titanomagnetite property near Chibougamau, Que.
• Phase 1 (Beneficiation):
  • Utilized comminution and wet magnetic separation.
  • Produced a vanadium magnetite concentrate and an ilmenite preconcentrate.
  • No atypical or non-standard beneficiation techniques were required.
• Phase 2 (Vanadium Extraction):
  • Evaluated oxidative roasting (800°C to 1,050°C) followed by sulphuric acid leaching.
  • Demonstrated a positive correlation between roasting temperature and vanadium extraction efficiency.
  • Iron and titanium remained largely insoluble, indicating selective vanadium extraction.
• Specific Metrics:
  • Concentrate Grade: Approximately 0.93% V2O5 and 78% Fe2O3.
  • Mass Pull: Approximately 63% in non-optimized conditions.
  • Recovery: Up to approximately 65% vanadium recovery at 1,050°C.
• Strategic Context:
  • Supports the development of a secure, low-carbon vanadium supply chain for VFB electrolytes.
  • Complements the company's proprietary VEPT hydrometallurgical process.
  • Plans to advance additional hydrometallurgical testwork to evaluate vanadium recovery pathways and co-products.
• Next Steps: IGS recommended refinement of the beneficiation flowsheet, additional roasting/leaching tests, and evaluation of particle size, leaching temperature, additive chemistry, and higher roasting temperatures.

Notable Quotes

• "Results indicate the technical potential of producing a vanadium-rich feedstock suitable for preliminary evaluation in downstream electrolyte processing studies."
• "The initial metallurgical results show Lac Dore mineralization can be processed into vanadium-bearing magnetite concentrate, with vanadium selectively extracted under current conditions. These findings represent an important technical step toward further evaluating processing methods for a potential integrated vanadium supply chain for long-duration energy storage." — Kristien Davenport, CEO