KRR is undertaking a Vanadium Study into the production of:
The key objective of the Concept Study is to identify the optimum framework for a new Scoping Study into the production of these products which will include the high purity grades required for the manufacture of vanadium electrolytes used in vanadium flow batteries (VFB) and vanadium and titanium products used in master alloys of Al-V-Ti. The study will initially focus on the large Central vanadium deposit at Speewah.
KRR’s Vanadium Project is the largest vanadium-in-magnetite deposit in Australia with the highest vanadium grade in the magnetite concentrate (KRC ASX announcement 25 June 2018). The vanadium deposits comprises a Measured, Indicated and Inferred Mineral Resource of 4,712 million tonnes at 0.3% V2O5, 2% Ti and 14.7% Fe (reported at a 0.23% V2O5 cut-off grade from the Central, Buckman and Red Hill deposits). This combined resource total comprises Measured Resources of 322 million tonnes at 0.32% V2O5, 2% Ti and 14.9% Fe, Indicated Resources of 1,054 million tonnes at 0.33% V2O5, 2% Ti and 14.9% Fe, and Inferred Resources of 3,335 million tonnes at 0.29% V2O5, 2% Ti and 14.6% Fe (Refer to KRC ASX announcement 26 May 2017 for the full resource statement details).
KRR envisages an open cut mining operation based on the Central Vanadium deposit which outcrops and has shallow dipping geometry (refer KRC ASX announcement 20 June 2018 for an initial conceptual pit modelling study). KRR’s Vanadium Concept Study is examining a process flow sheet to produce vanadium pentoxide, titanium dioxide and iron oxide products (KRC ASX release 20 June 2018). Initially a magnetite concentrate grading 2.11-2.15% vanadium pentoxide (V2O5) is produced by crushing, grinding and magnetic separation methods (KRC ASX announcements 21 August 2017 and 21 March 2018). The vanadium and titanium enriched concentrate is then leached in hydrochloric acid to release the V, Ti and Fe metals into solution for separation by hydrothermal and chemical precipitation methods followed by purification steps to produce high purity vanadium pentoxide (V2O5) and titanium dioxide (TiO2) products (KRC ASX announcements 30 January 2018, 27 February 2018 and 25 June 2018).