phobieeee wrote: Hi Bowerpower,
Global Geoscience also released test results last week for their Rhyolite Ridge Lithium-Boron Project in Nevada.
Lithium and boron recoveries of 88-92% using large samples of 150kg and 495kg = representative column leach tests! Please see full pr:
https://www.globalgeo.com.au/wp-content/uploads/2017/12/171212-Heap-Leach-Results-FINAL-1.pdf Cypress (small samples / not represantative)
"Solubility testing on claystone samples from across Cypress' Dean and Glory Projects have shown an impressive average of 35% Li recovery using a water leach and 95% Li recovery using a dilute Aqua Regia leach process"
ICM BC1601 (small samples / not represantative)
"Three samples from different elevations of the 1,560 feet (475 m) thick, continuously mineralized section of fined grained sediments show leach recoveries of 98, 93 and 89 percent Li, leaching with dilute acid. " ICM BC1602 (small samples / not represantative)
"Four samples (the “Samples”) from different elevations of the 1,170 feet (357 m) thick, continuously mineralized section of fined grained sediments show leach recoveries of 83% to 87% Li, leaching with dilute acid and 45% to greater than 56% leaching with distilled water."
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Don't get me wrong, I'd be happy to see 90%+ on a larger scale, but as Frank mentioned in the pr. "
The 98%+ lithium recovery rate experienced on Bonnie Claire
means nothing on its own if there is no scalable economic method attached to it".
It's not all about recuperation rates but a mix of recuperation rates and financial sustainability on a larger scale. Why should a company pay twice the costs or even more to get e.g. a 10% higher recovery rate. It's a simple cost function or cost-benefit equation. All major / tier 1 projects have once thing in common, they are at the bottom of the cost curve. Lithium prices won't stay on the current level for ever. Just my opinion.
I for one would be happy to see a 75%+ recovery rate with an economic extraction method that is environmentally friendly (no acids, low energy intensity, small footprint) and can produce lithium carbonate or lithium hydroxide
in battery grade, without the need for evaporation ponds.
>
"3.It involves purification and direct production of lithium carbonate or lithium hydroxide and can be linked to a lithium metal production." Regards phobieeee