Lithium Argentina AG
For the period ended Dec 31, 2025. Filed Mar 20, 2026.
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Dec 31, 2025 · Filed Mar 20, 2026
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EX-99.1 · Table 91: Basic Parameters of Solvent Extraction
Table 91: Basic Parameters of Solvent Extraction
| Item | Units | Value | Comment |
|---|---|---|---|
| DESIGN TPA | LCE | 40,000 | - |
| LHM | 12,500 | - | |
| Concentrated Brine | g/L Li | 3.05/3.09 | Average |
| Recovery | % | 90 | Extraction |
| Annual brine treatment | 10,000 m3 | 361.19 | Brine plus adjustment |
| Extraction Stages | LINE | 5 | - |
| Extraction | O/A | 4 | - |
| Washing | O/A | 40 to 66.7 | - |
| Stripping | O/A | 20 | - |
The extraction is accomplished in a multi-stage mixer settler system where brine is mixed with the iron-loaded extractant TIAP/P507/sulfonated kerosene-Fe(III). Lithium is coextracted with iron to form a complex [Li(TIAP)2][FeCl 4].
After water stripping, a lithium chloride solution with a pH of 1 and a lithium content of ≥19 g/L is obtained. Part of the stripping solution is recycled as washing liquid for the extraction section.
Li + FeCl 4- + 2TIAP = [Li(TIAP)2][FeCl 4]
[Li(TIAP)2][FeCl 4] + HL 2 = [FeCl 2 L.(HL). 2TIAP] + LiCl + HCl
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