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TA KHOA REFINERY
DOWNSTREAM REFINERY PROCESS FLOW DIAGRAM
Conversion of nickel concentrate into a MHP chemical, and thereafter to Precursor NCM uses established and well understood technology.
Flash Steam
Concentrate Transport Repulp & Pre-leach POX Autoclave Flash
Vessel Residue
Filtration
Concentrate Loader
Stockpile Leach Residue
Copper
Oxygen Plant Solvent Extaction Copper Electrowinning Copper Cathode
Limestone Magnesia Lime Condensate
Acid Supply Recycle
Neutralisation Recycle MHP Stage 1 MHP Stage 2 Recycle
Two-stage to POX to POX Kieserite
MHP Re-leach Crystalliser
Cobalt & Magnesium
Solvent Extraction MHP Stockpile
Kieserite Dryer Kieserite
By-product
Reagents NCM
(CoSO₄, MnSO₄, NCM Filter
NaOH, NH₃) Precipitation
Recycle to POX NaOH NCM
Weak Acid Recycle Recycle Bipolar Membrane NCM Dryer Product
Electrodialysis
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