Mining — Process Challenge

Solvent Extraction (SX) Reagents for Hydrometallurgy

Copper, uranium and rare-earth SX-EW plants purchase extractants, modifiers, synergists and diluents in bulk to selectively pull a target metal from leach liquor and concentrate it for electrowinning. We already hold the modifier, synergist and diluent set; adding the hydroxyoxime copper extractant lets one page own the whole Cu-SX reagent basket
Updated Jun 2026
Solution Approach

RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Treatment Workflow
1
System Assessment
Characterize operating conditions — fluid composition, temperature, pressure, flow, and H2S/CO2/water cut — and benchmark current treatment performance.
2
Chemistry Selection
Match scale and corrosion inhibitors, biocides, or demulsifiers to the operating envelope, factoring compatibility, regulatory constraints, and downstream impacts.
3
Field Trial & Dosing
Determine treat rates through bottle and field trials, and configure continuous or batch delivery and packaging (drums, totes, ISO tanks) to logistics.
4
Monitoring & Adjustment
Track corrosion coupon/ER rates, residual inhibitor, and separator and water-quality performance, adjusting chemistry and dose as wells change.
Recommended Chemistries (6)
Di(2-ethylhexyl) phosphoric acid (D2EHPA)
CAS 298-07-7
Acids & Salts
pH Adjustment
1902 (DI-(2-ETHYLHEXYL)PHOSPHORIC ACID) · Class
Acidic organophosphorus cation-exchange extractant that pulls Zn/Co/Ni/rare earths from solution via pH-dependent metal-for-proton exchange
Melting Point: < -60 °C   Boiling Point: 155 °C at 0.015 mm Hg   Density: 0.977 at 20 °C
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Tributyl phosphate (TBP)
CAS 126-73-8
Phosphate Esters & Derivatives
Solvency
Neutral solvating extractant/modifier (uranium and rare-earth nitrate systems) that also suppresses third-phase formation in the organic
Melting Point: < -80 °C   Boiling Point: 289 °C at 760 mmHg   Density: 0.982 at 20 °C
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Methyltrioctylammonium chloride (Aliquat 336)
CAS 5137-55-3
Surfactants
Conditioning
Quaternary-amine anion-exchange extractant that recovers anionic metal complexes such as uranium, vanadium and some rare earths
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Tri-n-octylphosphine oxide (TOPO)
CAS 78-50-2
Specialty Additives
Solvency
Neutral phosphine-oxide synergist that sharply boosts metal extraction and loading when paired with an acidic extractant
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Odorless Mineral Spirits (diluent)
CAS 64742-48-9
Solvents
Solvency
Aliphatic hydrocarbon diluent that carries the organic-phase reagent at the right viscosity with low odor and a high flash point for plant safety
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Hydroxyoxime copper extractant (aldoxime/ketoxime, LIX-type)
Chelating oxime that selectively binds Cu2+ from acidic leach liquor and releases it on strip; the dominant copper SX reagent. (source on demand; commercial product is a formulated oxime mixture)
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