Notably, stage I test work has been completed which focused on metallurgical test work designed to confirm previous upgrade factors from the November 2018 scoping study.
The PFS consultant, Wave International, was able to complete the test work and produce suitable amounts of concentrate for the stage II hydrometallurgical test work.
Stage II test work is designed to develop the sulphate-roast-water-leach (‘SRWL’) flowsheet to a PFS standard.
Stage I focussed on the crush-mill and beneficiation stages, stage II covers ‘roast and leach’ stages
As per the flowsheet above, after stage II, the leach solution produced will move to stage III, the final stage, where through a process of purification and crystallisation lithium hydroxide will be produced.
Wave International's Director Ryan Hanrahan commented: “The confirmation of the scoping study beneficiation recoveries and grades is an encouraging first major milestone for the San Jose PFS.
"These results provide a solid platform on which to progress the PFS engineering and ongoing metallurgical test work.
"As a team we are excited to be supporting INF to take the next step in de-risking the San Jose project and progressing towards development.”
Last month, Infinity increased its ownership to 75% from 50% in the San Jose Lithium Project in Spain.
The project’s November 2018 scoping study valued the lithium project at up to US$1.017 billion.