Metals, out of solution
Lithium pulled selectively from a magnesium-dominated brine, cobalt separated from nickel across one pH unit, entrained liquor washed out of a leach residue and a grinding circuit closed by a real classifier — aqueous chemistry solved, not approximated.
Process modules
Selective lithium loading off a high-magnesium Salar brine, converted to hydroxide by electrodialysis and crystallized to battery grade.
Open process page →A 20-stage D2EHPA counter-current circuit separating cobalt from nickel inside the ~1 pH-unit window that makes it possible.
Open process page →Counter-current decantation recovering entrained copper liquor from a leach residue, then precipitating the copper as hydroxide.
Open process page →A hydrocyclone on the Plitt corrected-cut-size correlation — the unit that closes every closed-circuit grinding loop.
Open process page →Honest scope: the aqueous chemistry here runs on a curated set of cited electrolyte and solubility data, not on a licensed ion-pair databank of the kind a dedicated hydrometallurgy package carries. That is a data gap, not a missing formula — expanding it with unverified parameters would trade a documented limit for a fabricated one. The classifier uses the Plitt correlation with a real bypass fraction rather than a sharp cut, which is what keeps the circulating load honest.