CWA 66D

Macroporous Weak Acid Cation Exchange Resin

DOSHION CWA 66D is a high capacity macroporous polyacrylic weak acid cation exchange resin. It is insoluble inacids, alkalis and all common solvents.
The Characteristics of Doshion CWA-66D:
• Excellent selectivity for heavy matals
• Used as an economic replacement of chelating resin in some industries
• Used in dealkalisation in domestic applications
• Used in softening of high TDS water & Waste water
PROPERTIES
Matrix Cross Linked Polystyrene Macroporous
Functional group Carboxylic Acid
Ionic Form H+ – Hydrogen
Appearance Spherical beads
Particle Size (mm) 0.30 – 1.25 (99%)
Molsture Content % 50-60
Total Exchange Capacity (Min) (eq/L) 3
Bulk Density or Shopping Weight gms/ltr 700 – 800
Reversible Swelling (H+ to Na+ ) % 70
Solubility in common solvents Insoluble
SUGGESTED OPERATING CONDITIONS
Operating pH 0-14
Minimum bed depth cm 75
Regenerant Concentration % 0.5-0.8 (H2SO4)
1 – 5 (HCl)
Regenerant flow rate ^BV/hr 4-8
Regenerant contact time Minutes 30 -60
Regeneration Level 100% H2SO4     HCl  m3 per m3 of Resin 115% of the operating capacity used
Displacement Rinse rate *BV/hr 4-8
Displacement Rinse volume *BV 1.5-2.0
Fast Rinse rate *BV/hr 10-20
Fast Rinse volume *BV 4-6
Service flow rate *BV/hr 5-40

*Bed Volumes/Hour **Bed Volumes

Pharma Polymer (23)

Ion Exchange Resin (36)

Cation Exchange Resins (8)

Strong Acid Cation (5)

Gel (4)

Macroporous (1)

Weak Acid Cation (2)

Gel (1)

Macroporous (1)

Non Regenerable Cation (1)

  1. CSA 309

Anion Exchange Resins (11)

Strong Base Anion (7)

Gel (3)

Isoporus (2)

Macroporous (2)

Weak Base Anion (3)

Macroporous (3)

Non Regenerable Anion (1)

  1. GA 711

Mixed Bed Resins (1)

Uniform Particle Size (7)

Speciality Resins (9)

  1. DCHR 74
  2. DCHR 78
  3. DIRM 412
  4. DCR 11
  5. CWA 66D
  6. DMB-13 S
  7. CGC 1200
  8. CMC 1900
  9. CMC 2400

Water Treatment Chemicals (0)