Following the pilot plant production, samples were submitted for high-level Glow Discharge Mass Spectrometry (GDMS) analysis to EAG Laboratories in New York, USA, which returned results averaging greater than 99.99% aluminium oxide from continuous calcination.
The trial HPA product will now be sent to potential customers for follow-up product qualification.
Test results continue to meet FYI’s pilot plant operational expectations and further validate FYI’s innovative process design for HPA production.
Flowsheet design reinforced
FYI managing director Roland Hill said: “The results from the stage two pilot plant trial are particularly pleasing as the purity has continued to meet our target expectations.
“The results reinforce the validation of our innovative flow sheet design and the sound technical principles upon which we have based our HPA strategy as demonstrated in our recently published DFS.
“We are now freighting requested parcels of our HPA to selected potential customers for continued qualification.
“We look forward to working closely with the various groups through their individual assessment process.”
Based upon the learnings from this recent continuous calcination run, the company is planning further stages of improvement to potentially advance the results achieved to date.
Supplementary finishing work
Having passed FYI’s internal quality control and quality assurance testing, the stage-two trial product will now be packaged up to the various potential customer requested requirements and forwarded to them for further in-depth qualification.
Around half of the material will be retained by FYI for supplementary finishing work which was specifically requested by certain prospective customers.
The company considers this additional work as a ‘value-add’ to the customers which will facilitate a more effective qualification pathway.
HPA product qualification
Product qualification is the process in which end users assess the performance, quality, purity and over-all suitability of the HPA to evaluate if the product meets certain performance criteria stipulated in contracts, regulations, or specifications.
Commentary received from potential customers regarding FYI’s stage-one HPA trial production is that the material was very well accepted, exceeding the quality and purity requirements for the applications for which it was assessed.
The company will now deliver sample product to potential customers specialising in several industries that utilise HPA – with a focus on the sapphire glass, LED and electric vehicle (EV) battery segments.