AVL (ASX) Ann: Achievement of Ultra-High Purity 99.9% Vanadium Product

Originally posted by sabine ↑

ACHIEVEMENT OF ULTRA-HIGH PURITY 99.9% VANADIUM PRODUCT

KEY POINTS

• Pilot testwork achieves greater than 99.9% purity vanadium pentoxide from Australian Vanadium Project ore.
• Ultra-high purity flowsheet provides a scalable ‘bolt-on' option to produce ultra-high purity vanadium oxides which demand a premium price.

Australian Vanadium Limited (ASX: AVL, “the Company” or “AVL ”is pleased to announce that it has demonstrated the capability to produce greater than 99.9% ultra-high purity vanadium pentoxide (V2O5) at pilot scale, using AVL ore.
These results confirm a processing route that can easily be incorporated into the AVL flowsheet, employing well known processing technology that can be readily scaled to meet market demand.

View attachment 6058784

Ultra-high purity vanadium pentoxide is critical in applications where even the smallest impurities can significantly affect performance, such as the chemical industry and specialty alloys for the aerospace industry, including defence.

These growing market segments demand higher purity levels.
AVL has identified the importance of satisfying this expanding market, in addition to other steel and battery markets which can use the Company's standard 99.5% purity level.1

CEO, Graham Arvidson, comments, “AVL's ability to produce 99.9% ultra-high purity vanadium pentoxide, in addition to our 99.5% standard high purity vanadium pentoxide, allows us to further strengthen our competitive advantage in specialised markets in which premium products attract a higher value.
“Our distinct advantage as a business continues to be our outstanding technical and economic vanadium processing acumen and I commend the team for the work undertaken to create and substantiate a new pathway for additional value creation.
Our conviction remains that vanadium producers who can achieve the highest quality vanadium oxides will stand above the rest and command the greatest and most enduring returns. In addition to our proposed world-class vanadium project, our lowest quartile unit cost competitiveness strategy and our focus on product quality will
provide further long-term competitive advantages to the Company and superior investor return.
“We have been pleased to work with the team at ANSTO and for the support that the
Government has provided us in achieving this milestone. Adding value to vanadium through
downstream processing in Australia aligns with the Federal Government's Critical Minerals Strategy
2023-2030 and helps to keep the value of Australia's minerals in the country as we transition to a
net zero future.”

The work undertaken to achieve ultra-high purity vanadium pentoxide was partly funded through a
$3.69 million Australian Government Modern Manufacturing Initiative Translation grant under the
National Manufacturing Priority Roadmap.2
AVL worked in conjunction with Australia's Nuclear Science and Technology Organisation (ANSTO)
in Sydney to develop a feasible processing route. The pilot for producing ultra-high purity vanadium
pentoxide is the culmination of two years of work, exploring the most economic method for producing
this product. The pilot was designed and operated to simulate processing of a stream diverted from
the leach circuit developed in the AVL Bankable Feasibility Study (BFS) flowsheet.3 This concept
allows for easy integration of an ultra-high purity process, in addition to the Company's high purity
process, that can be scaled to match ultra-high purity demand.

The feed for the pilot was generated during AVL's pilot beneficiation,4 pyrometallurgy5 and hydrometallurgy6 programs, conducted as a part of the BFS work undertaken in 2021.
The feed materials for this sequence of pilot programs comprised two composites of drill core, designed to be
indicative of the average first five years of production and life of mine production.7
Three composite samples of the final vanadium pentoxide product were taken during the course of
the pilot and submitted for assay in triplicate.
A full analysis was performed at the Bureau Veritas laboratory, using a combination of x-ray fluorescence (XRF) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS).
The average result for each composite is found in APPENDIX 1
Table 1 in Appendix 1 below. While vanadium pentoxide was not measured directly with these
methods, the inferred value from measured elemental vanadium is greater than 99.9%. The most
significant impurity was chromium, which was able to be reduced to 0.014%, with potential for further
improvement. Most other impurities were below detection limits.
View attachment 6058781

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The notice above states this production at “pilot scale” is the culmination of two years work.

Looking even further back, FWIW, here’s a link to [ aPr0Active report] dated 13/12/2021 which gives detail on high-purity 99.5% V2O5 marketing samples which were produced in the final stage of metallurgical testing for the Australian Vanadium Project’s (pre-merger with TMT) bankable feasibility study (BFS) which was produced in early 2022.

cheers

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