Battery metals Process Flowsheets & Simulations
Explore 2 validated, solved Battery metals simulation flowsheets in MaximaLabs — real components: water, co, ni, mg, kerosene, nacl. Open any one directly in your browser.
Solved via: BRINE.
Cobalt/nickel solvent extraction (D2EHPA)
A laterite leach liquor (Co/Ni/Mg in dilute sulfate solution) meets a D2EHPA-in-kerosene organic phase across a 20-stage countercurrent extraction circuit run at pH 5.2 — the real industrial operating window (e.g. Bulong, Murrin Murrin, Western Australia) that exploits the ~1 pH-unit gap between Co and Ni's D2EHPA extraction isotherms: Co extracts into the organic while Ni (and Mg gangue) are rejected to the raffinate. The loaded organic then meets fresh dilute-acid strip liquor across a 10-stage strip circuit at pH 1.0 (well below Co's isotherm), reversing the equilibrium to recover a concentrated cobalt strip liquor and regenerate barren organic. Real pH-isotherm chemistry throughout (thermo/organophosphorus_extraction.py), not a fitted shortcut K_D. Honesty note: the regenerated organic and strip liquor aren't recycled back upstream (an open-loop v1, same posture as this session's other new cycle examples) — a real plant recycles both; strip_stage's distribution_coefficients is the numeric inverse of the same isotherm (1/D_Co at pH 1.0 = 1e8, i.e. strongly favors the aqueous phase) since extraction_column.py's ph= mode always assumes the aqueous-feed/organic-solvent extraction direction, not reverse stripping.
8 unit ops • BRINE
17 0
View & openDirect lithium extraction + LiOH crystallization
A Salar-brine DLE train: an Al-based sorbent column selectively loads Li+ (rejecting the brine's much larger Mg2+ background — real DLE sorbents cut a ~290:1 Mg/Li mass ratio down to under 1:1), the loaded sorbent is eluted with fresh water into an aqueous strip liquor (bridging the sorption column's own documented single-pass-loading scope), RO concentrates it, a real bipolar-membrane electrodialysis (BPED) cell converts LiCl to LiOH — Faraday's law links the applied current/membrane area/current efficiency to the actual Li+ transport rate (replacing an earlier placeholder fixed-conversion reactor), reporting real cell voltage and electrical power draw — and a forward-feed two-effect evaporator train (vapor from effect 1 heats effect 2) concentrates it to battery-grade LiOH·H2O crystals. Real boiling-point elevation throughout via the Pitzer-electrolyte brine thermo package. Isotherm parameters per the sorption column's own citation (2024 Desalination study, Al-based DLE sorbent). Honesty note: the BPED cell still tracks only the lumped li/lioh solute pair this brine thermo package carries (no first-class Cl-/H+/OH- species), so it produces one outlet stream (the Li+ -> LiOH conversion) rather than a genuine two-compartment acid+base product split — see flowsim/solver/unitops/bped.py for the exact scope.
17 unit ops • BRINE
18 0
View & open