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D113 Macroporous Adsorption Weak Acid Cation Exchange Resin


D113 is a premium grade, weak acid, macroporous, cation resin supplied in the hydrogen form as moist, tough, uniform, spherical beads. D113 is intended for use in hydrogen cycle dealkalization, deionization, and chemical processing applications. D113 can also be supplied in the sodium form for use in sodium cycle applications such as softening and removal of heavy metal cations.

2.Typical Physical and Chemical Properties

Items Specification
Polymer Matrix Structure Acrylic Crosslinked with DVB
Physical Form and Appearance Macroporous spherical beads
Functional Groups R-COOH
Ionic Form ,as shipped H+
Total Capacity, H+ form, wet, volumetric ≥4.2 eq/l min
Moisture Retention, H+ form 45-52%
Particle Size Range 0.3mm-1.2mm
< 0.3mm(max.) 1%
Uniformity Coefficient (max.) 1.6
effective size 0.4-0.7mm
Reversible Sweling Na+ → H+ (max.) 65%
Shipping Weight (approx.) 720 -800g/l
Specific Gravity, moist Na+ Form 1.18
pH Range, Stability 0 - 14

3.Suggested Operating Condition

Maximum Temperature H+ Form 120°C (248°F) max.
Backwash Rate 50 to 75% Bed Expansion
Regenerant Concentration
Hydrogen Cycle
1% to 4% HCl or 0.5-1.0% H₂SO₄
Regenerant dosage HCl or H₂SO₄ volume:resin volume =3:1
Regenerant Flow Rate 2 to 4 BV/h
Regenerant contact Time At leaest 40 minutes
Service Flow Rate 10~25m/h


It used in the deionization and water softening and aqueous organic solutions,with 001x7 strongly acidic cation exchange resin can remove alkalinity and hardness from water obviously,especially removing hydrogen carbonates, carbonates and other alkali salts. It is also used in industrial wastewater treatment, metal recycling, separation and purification of biochemical pharmaceuticals etc.

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