Overview
Ion exchange is used for water softening, full demineralisation, and condensate polishing in power plants, petrochemical complexes, and LNG facilities. Resin selection, cation, anion, mixed bed, or specialty, depends on feed water composition, required product water quality, and regeneration constraints. We supply a full range of resin types alongside regeneration chemicals (HCl, NaOH, NaCl, H₂SO₄).
Strong Acid Cation (SAC)
Sulphonated polystyrene resins that exchange all cations (Ca, Mg, Na, K) for hydrogen or sodium ions. The workhorse of demineralisation and softening systems.
- Gel-type SAC
- Macroporous SAC
Weak Acid Cation (WAC)
Carboxylic acid functional resins with high capacity for hardness removal from alkaline waters. Regenerated efficiently with stoichiometric acid doses.
- Macroporous WAC
Strong Base Anion (SBA)
Quaternary amine resins that remove all anions including silica and CO₂. Type I provides higher silica removal; Type II offers higher capacity and easier regeneration.
- Type I SBA
- Type II SBA
Weak Base Anion (WBA)
Tertiary amine resins that remove strong acid anions (Cl, SO₄, NO₃) but not silica or CO₂. High capacity with efficient caustic regeneration.
- Macroporous WBA
Mixed Bed Resins
Pre-mixed or separate H⁺/OH⁻ resin pairs for polishing demineralised water to ultrapure quality. Used as a final treatment step in power and electronics applications.
- Ready-mixed MB
- Separate H⁺/OH⁻ components
Specialty Resins
Application-specific resins for targeted contaminant removal beyond standard demineralisation and softening duties.
- Chelating Resin (heavy metal removal)
- Scavenger Resin (organic removal)
- Condensate Polishing Resin